47 results about "Detritus" patented technology

The invention discloses geochemical sampling equipment and a using method thereof, and relates to the technical field of geological sampling, the geochemical sampling equipment comprises a sampling device base, the sampling device base is placed on geological soil, a lifting system is installed on the sampling device base, the lifting system is connected with a driving system, and the driving system is connected with the sampling device base. The bottom end of the driving system is connected with a hand-operating mechanism, a planetary gear box body mechanism is movably connected in the hand-operating mechanism, the output end of the driving system penetrates through the hand-operating mechanism and is in transmission connection with the planetary gear box body mechanism, and the output end of the bottom of the planetary gear box body mechanism is connected with a sampling drill bit. A collecting mechanism is connected into the planetary gear box body mechanism, and a cleaning mechanism is further connected into the planetary gear box body mechanism. According to the equipment, the planetary gear box body mechanism and the cleaning mechanism are combined, so that when the sampling drill bits cut soil, chippings can be collected and cleaned synchronously, and the collecting mechanism is of a surrounding type cleaning structure.

The invention discloses an enteromorpha-microalgae competitive growth process simulation method, and relates to the technical field of marine ecology and environmental science. The method comprises the following steps: taking remote sensing image monitoring data of a research area, constructing an enteromorpha green tide coverage area three-dimensional space-time distribution matrix, and determining the distribution range of the matrix; dividing and numbering according to the size of a preset grid unit to obtain an enteromorpha block and a spatial position, and performing dimension reduction processing; the method comprises the following steps: dividing a research area into three subareas, and respectively constructing nutritive salt-enteromorpha-microalgae-debris ecological dynamics box-type models; determining a cross-regional shunting coefficient according to the drifting speed of the enteromorpha between the partitions, and connecting the three box-type models in series; and reconstructing and simulating a time-varying simulation value of the enteromorpha coverage area by using the serially connected models, determining an environmental element modulation effect value, and further determining the key control degree of each environmental element on the competitive growth process of the enteromorpha.

This invention relates to the field of oil and gas exploration technology research, specifically to a method for determining the initial porosity of mixed sedimentary rocks. The method includes the following steps: establishing a classical porosity model for the mixed sedimentary rock reservoir to obtain the initial porosity formula for terrigenous clastic sediments; determining the effective storage of snail-like biocavities in the mixed sedimentary rock reservoir through simulation experiments, thereby obtaining the initial porosity of bioclastic sediments in the mixed sedimentary rock; and combining the initial porosity of terrigenous clastic sediments and the initial porosity of bioclastic sediments to obtain the initial porosity of the mixed sedimentary rock. Compared with existing methods, the calculation method of this invention includes biocavity porosity, and particularly, comprehensively considers the influence of terrigenous clastic sediments and bioclastic sediments during deposition, effectively increasing the accuracy of the initial porosity calculation for mixed sedimentary rocks.

The invention relates to the field of organic matter-rich shale mineral type and cause research, and discloses a shale clay mineral composition quantitative recovery method, which comprises: S1, cutting and polishing a shale sample, and carrying out argon ion polishing; s2, based on SEM-EDS combined analysis, collecting morphology and energy spectrum characteristics of clay minerals with different causes, and constructing a clay mineral cause standard library; s3, AMICS analysis parameters are optimized, and 2-4 vision fields are selected for scanning to generate original data; s4, processing the scanning data, calculating the mineral content, and performing cross validation with an XRD-Rietveld result; and S5, in combination with a diagenetic evolution sequence and a mass conservation principle, inverting the contents of original montmorillonite and clastic clay minerals. According to the method, clay minerals of different causes are distinguished through the SEM-EDS double-constraint model, AMICS parameters are optimized, the recognition precision is improved, and quantitative recovery of original components is achieved in combination with diagenetic inversion.

The present application belongs to the technical field of environmental monitoring, and discloses a kind of analysis method of total carbon lateral transport flux of mangrove ecosystem.The analysis method provided by the present application establishes monitoring target area at the connection of mangrove tidal ditch and adjacent water body and obtains corresponding hydrological parameters and chemical parameters at regular time, to realize the monitoring of lateral transport flux of non-large plant detritus carbon, while collecting large plant detritus samples and measuring the amount of large plant detritus carbon, to realize the monitoring of lateral transport flux of large plant detritus carbon, by quantifying the lateral transport of different forms of carbon and performing weighted operation, so that the obtained total carbon lateral transport flux of mangrove ecosystem has higher accuracy and certainty, can well realize long-time sequence full-form continuous observation of carbon lateral transport of mangrove ecosystem, and has good application prospect.

This utility model relates to a fountain structure for ecological restoration of eutrophication in a landscape lake, including a water inlet tank. A filter screen is installed on the inner wall of the water inlet tank. Multiple water inlets are opened on the outer surface of the water inlet tank, and multiple water inlets are opened on the upper surface of the water inlet tank. A protective box is installed on the upper surface of the water inlet tank, and a first motor is installed on the inner bottom wall of the protective box. This utility model, through a dual composite water inlet structure of water inlets and water inlets, combined with the filter screen installed on the inner wall, can intercept large particles of debris such as aquatic plants and large-diameter organic debris, avoiding the problem of device clogging. The first motor drives the rotating rod and stirring rod to rotate at high speed, and the resulting vortex can disperse algae clusters and fine organic debris in the water inlet tank, preventing them from depositing at the bottom of the water inlet tank to form an anaerobic sediment layer. This design avoids secondary pollution and also prevents deposited debris from being carried into the subsequent biological treatment stage by the water flow, ensuring the stability of the microbial degradation environment.

The invention relates to the technical field of geology and sedimentary data analysis, in particular to a sedimentary rock particle analysis method and system based on an opencv visual library. The method comprises the following steps: firstly, acquiring a high-resolution digital image of a sedimentary rock sample, and preprocessing to enhance the characteristics of clastic particles; processing the image by using an opencv library, automatically identifying and segmenting a single debris particle, and calculating the equivalent diameter of the single debris particle; finally, an analysis report containing particle distribution and particle size statistical information is automatically generated. According to the method, image acquisition, processing, analysis and report generation are integrated into a continuous automatic process, a traditional manual microscope observation and manual measurement mode is replaced, the analysis efficiency is remarkably improved, and the method is suitable for large-scale sample processing. Recognition and measurement are executed through a standardized algorithm, subjective errors are effectively reduced, objectivity and consistency of analysis results are guaranteed, and an efficient and reliable technical means is provided for sedimentary rock granularity analysis.

The present application relates to a microfossil extraction system based on fluid control, comprising an extraction system body, a maintenance assembly is clamped on the top of the extraction system body, and a dredging assembly is fixedly connected to one side of the extraction system body; the maintenance assembly comprises a top cover and a threaded rod, the top cover is clamped on the top of the extraction system body, and the threaded rod is threadedly connected to one side of the extraction system body. The microfossil extraction system based on fluid control, the dredging assembly can remove the blockage such as sample debris and clay deposits at the fluid pipeline and discharge port in the device, avoid the decrease of fluid flow rate caused by blockage, prevent the target microfossil from being stranded and damaged at the blockage, ensure the stability of fluid circulation in the extraction process, ensure the smooth discharge of waste residues, reduce manual intervention in dredging operation, reduce operation strength, avoid local wear of the system caused by blockage, improve the smoothness and reliability of system operation, and provide protection for efficient microfossil extraction.

The present invention comprises the deployment of a product known as RubisCO Climate Vaccine® or simply RCV which contains a specialised adapted culture of psychrophile algae and accelerators. This RCV is inoculated into targeted tropospheric clouds. The cumulatively large air-liquid optical interface area of clouds enables conditions for potential exponential photosynthetic algal growth and replication during which carbon dioxide is processed and oxygen released directly in the troposphere. Optimal inoculation sites are determined by altitude, humidity, temperature, weather patterns and predicted direction and duration of travel for precipitation, The biomass produced in this process is intended to be precipitated over mid-ocean where it is sequestered within natural ocean food chains or sedimented as detritus essentially permanently. This nature-based solution through repeated deployments offers a feasible scalable pathway toward potential climate change reversal within a decade with minimal or no adverse environmental impact.

The invention relates to the field of underground water collection, in particular to an underground water collection device for mining area geological exploration, underground water in a sampling barrel needs to be quickly distinguished by detection personnel, sampled water is filtered out from ore, the operation affects sampling and collection of the detection personnel on the underground water, and the underground water sampling efficiency of operators is reduced. The underground water in the inner cylinder and the underground water in the sampling cavity are distinguished, loose and attached particles such as sand, silt and mineral debris are removed through instantaneous movement of the filtering part, and the requirement that the sampling time needs to be excessively prolonged due to the fact that the flow in the sampling cavity is too low is reduced.

The application discloses a kind of marine mining area geological survey columnar sediments cutting sampling device of sampling device technical field, including mounting frame, support leg, drive drill rig;When the present application is surveyed and sampled to the geology of marine mining area, utilize rotating column and cleaning tooth, rotating column and cleaning tooth can be rotated under the drive of silt and debris, the mud discharge effect of drill bit can be increased by rotating column rotation, avoid silt and debris will gather and adhere in the gap between multiple broken teeth, and cleaning tooth can stir and clean silt and debris that have adhered between multiple broken teeth, so that silt and debris adhered between broken teeth can be stripped and flow with water flow, avoid multiple broken teeth between there can be silt and debris adhered, and utilize flushing hole to flush the gap between broken teeth, cooperate with the stripping of silt and debris between broken teeth by cleaning tooth, can further remove the debris remaining between broken teeth.

The application discloses a kind of basin deep brine lithium ore exploration methods.The present application relates to the technical field of geological exploration.The present application comprises the following steps: S1, real-time take circulating mud sample in the process of drilling, the drilling mud liquid of sampling is placed for a period of time to obtain clear liquid sample, and the clear liquid is chemically analyzed lithium content;S2, according to the sampling depth, the sampled detritus sandstone core is recorded and described, and the porosity of the detritus rock is observed in the field or tested in the laboratory;S3, according to the lithium content of mud clear liquid and the porosity of detritus rock, the lithium content of brine in the formation detritus rock pore is calculated, and the lithium content of pore water is equal to the lithium content of mud clear liquid divided by the porosity of detritus rock;S4, whether there is brine lithium ore is judged according to the lithium content calculated in step S3.The present application is a kind of basin deep brine lithium ore exploration method, which is low in cost, simple and effective.

To provide a dust collector capable of avoiding the capture of unintended fishes during the collection of dust.SOLUTION: This dust collector 10 is obtained by attaching a net frame 14 for collecting dust to the whole circumference of an endless link chain 12 and circularly moving the link chain 12 in a direction crossing the flow direction of a fluid with a sprocket wheel 16 and is characterized by installing a fish-repelling part 20 for keeping away fishes approaching the net frame 14.SELECTED DRAWING: Figure 1

The invention discloses a method for extracting calcareous microfossils of consolidated sediments, which comprises the following steps: S1, taking a rock core sample or a rock debris sample of the consolidated sediments, cleaning the surface of the rock core sample or the rock debris sample, and crushing the rock core sample or the rock debris sample to obtain a debris sample; s2, weighing a chipping sample, soaking the chipping sample in water, heating the chipping sample, and then freezing the chipping sample to obtain a frozen sample; s3, hydrogen peroxide is added into the frozen sample and mixed, then sieving and cleaning are conducted, and first particles are obtained; adding a weakly alkaline reagent and heating to obtain a first mixture; s4, adding an anti-flocculating agent into the first mixture, mixing, and carrying out ultrasonic treatment to obtain a second mixture; and then sieving, cleaning, drying and collecting a particle sample. According to the method, more calcareous microfossils are physically separated out, chips adhering to the surfaces of the calcareous microfossils fall off, chemical decomposition of the fossils and adhering particles is promoted, meanwhile, preservation of fossil shells is facilitated, and fine particles are prevented from being flocculated and precipitated.

The present application belongs to the field of marine ecological dynamics and biogeochemical process coupling simulation technology, and particularly relates to a method for regulating marine diatom-microzooplankton competition evolution mechanism by nutrient salt-enzyme activity, comprising the following steps: constructing a model according to the double-algae niche competition principle of nutrient salt and enzyme activity regulation, introducing an enzyme activity regulation submodule, and regulating the growth, metabolism, secretion and death processes of phytoplankton. The model comprises a nutrient salt module, a phytoplankton module and a detritus module, which are respectively used for simulating the migration and transformation process of nutrient salt in the marine environment, the growth and death process of phytoplankton and the transformation process of detritus. The absorption, assimilation and transformation processes of nutrient salt are regulated by enzyme activity, and the detritus is divided into cell detritus and particulate detritus, so as to distinguish the loss of dead cell organic matter and the mineralization process of detritus, and the cell disintegration process is supplemented. Finally, the phytoplankton growth and death dynamics parameters are simulated by the model, and the mechanism of marine diatom-microzooplankton competition evolution is analyzed.

The invention relates to the technical field of applied geology, and discloses a coverage area rock augmentation height quantitative recovery method based on big data, which comprises the following steps: S1, obtaining a clastic zircon sample in a sedimentary basin of a research area, measuring U-Pb age and trace element data of the clastic zircon sample, and constructing a multi-dimensional clastic zircon database; s2, screening the data in the step S1, and removing Th / Ult; 0.1, Legt; the zircon data is 1 ppm, and the zircon from the S-type granite source is excluded. According to the coverage area rock augmentation height quantitative recovery method based on the big data, a technical chain of earth crust thickness inversion-paleo-elevation reconstruction is constructed based on multi-dimensional chipping zircon geochemical data, the denudation preservation state and development potential of mineral resources can be quantitatively analyzed, the method has universal guiding significance for deep prospecting, and the method is suitable for large-scale popularization and application. In the aspects of resource economy evaluation and exploration decision making, direct correlation analysis of denudation amount and buried depth data is realized.

The application provides a method for determining whether a shale reservoir is a deep-water sandy muddy debris flow deposit. The method determines whether the target shale reservoir is a deep-water sandy muddy debris flow deposit by determining whether the target shale reservoir has characteristics 1, 2 and 3; wherein characteristic 1 is that coarse-grained material is suspended in fine-grained material; characteristic 2 is that there are partially long strip-shaped shallow-water interstitial materials arranged in a bedding manner in some areas, and there are partially long strip-shaped shallow-water interstitial materials not arranged in a bedding manner in some areas; wherein the bedding manner refers to an angle of not more than 10° with the stratum; and characteristic 3 is that there are a terrestrial subsystem, a shallow-water subsystem and a deep-water subsystem; wherein if there is coarse-grained terrestrial quartz, the terrestrial subsystem exists; if there is coarse-grained interstitial material, the shallow-water subsystem exists; and if there is muddy biological silica and an organic clay complex with a honeycomb-shaped organic pore, the deep-water subsystem exists.

A machine for removing sediment, dregs, and the like, comprising a self-propelled machine body (2) provided with a pumping unit (7) having a suction duct (9) of material to be removed and a delivery duct (10) of the removed material; the machine comprises a supply device (20) of the material to be removed, movably connected to the machine body and adjustably positionable with respect to a supporting plane of the machine; the supply device (20) moves between an operational configuration, in which it is supported on the support plane (P) of the machine, and a non-operational configuration, in which it is lifted from the support plane. The supply device has an oscillating tool (21), selectively activated in rotation with reciprocating motion in order to dislodge the material to be removed and convey the material to a suction mouth (12) that is fluidically connected to the suction duct.

A drilling process method and system for drilling a well are described. The method includes performing a drilling operation through a downhole formation, the drilling operation generating drilling cuttings. A single drilling cutting sample is obtained at a location on the surface. An x-ray diffraction (XRD) and / or x-ray fluorescence (XRF) analysis is performed on the single drilling cutting sample. Elemental information and mineral information of the single drilling cutting sample is obtained from the XRF analysis about the downhole formation. At least one petrophysical property of the downhole formation is determined from the obtained information.

The application relates to the technical field of numerical simulation, and particularly discloses a numerical method for simulating the mechanical properties of ice-rock debris with different ice contents, which comprises the following steps: a ring shear apparatus model is established according to a three-dimensional particle flow program PFC; after a given ring shear apparatus speed is given, the shear stress and the angular displacement of the ice-rock debris are monitored; meanwhile, implicit heat transfer calculation is carried out on the ice particles and the rock particles of the upper and lower shear boxes; when the ice-rock debris reaches the residual shear strength, the calculation is stopped; the state diagram of the ice-rock debris after the completion of shearing with different ice contents is simulated; and finally, the relationship diagram of the ice content and the residual shear stress of the ice-rock debris is obtained. The application provides a comprehensive and detailed framework for simulating and analyzing the mechanical properties of the ice-rock debris with different ice contents, which not only helps to scientifically understand the dynamic process of the ice-rock debris flow, but also provides guidance for related engineering applications.

The invention discloses a lake basin deepwater fine-grained sediment source analysis method and device, and the method comprises the steps: obtaining sedimentary microfacies recognition result data of a rock core sample of a to-be-detected lake basin region, and generating a sedimentary microfacies profile map of a single well high-frequency sequence; obtaining the fragment zircon age distribution in the fine grain sediment; utilizing the sedimentary microfacies profile map and the detrital zircon age distribution to determine the source associated information of the fine-grained sediment in the same deposition time period; the source associated information comprises fine-grained sediments from the same source; carrying out paleo-landform reduction analysis, paleo-water depth reduction analysis and sediment particle size distribution analysis on the lake basin area to be detected, and outputting sediment carrying characteristic data and sediment distribution characteristic data; based on the object source correlation information, the sediment carrying characteristic data and the deposition distribution characteristic data, density flow deposition body distribution characteristics are analyzed through a well seismic isochronous profile, and a deposition microfacies distribution diagram is output. According to the method, lake basin deepwater fine particle mixed deposition superposed material sources can be distinguished.

The application provides a logging quantitative prediction method for the dissolution intensity of carbonate rocks, which selects a standard sample of dissolution affected by dissolution more obviously as a basis for establishing quantitative evaluation of the dissolution intensity, and further verifies the standard sample of dissolution. Then, a target dissolution intensity development index parameter reflecting the dissolution intensity is obtained, and the dissolution intensity of the pore-type bioclastic limestone reservoir is described. The evaluation method fully combines the basic geological data, and constructs a quantitative evaluation index of the dissolution intensity according to the target dissolution intensity development index parameter, so that the evaluation of the development scale difference of the pore-type bioclastic limestone reservoir in the target interval is more in line with the actual situation of the oilfield. The method can provide a specific and quantitative method for the description of the dissolution intensity of the pore-type bioclastic limestone reservoir, make up for the lack of diagenetic transformation between the carbonate rock facies and the reservoir, accurately describe the dissolution intensity of the carbonate rock, and lay a foundation for the deterministic description of the reservoir unit.

The application discloses a kind of enteromorpha-microalgae competitive growth process simulation method, it is related to marine ecology and environmental science and technology field.The method includes: taking research area remote sensing image monitoring data, constructs enteromorpha green tide coverage area three-dimensional space-time distribution matrix, determines its distribution range;According to the size of preset grid unit division numbering, obtain enteromorpha block and spatial position, carry out dimension reduction processing;The research area is divided into three subareas, and the nutrient salt-enteromorpha-microalgae-fragment ecological dynamics box type model is respectively constructed;According to the drift speed of enteromorpha between subarea, determine the cross-regional shunt coefficient, connect three box type models;The simulation value of enteromorpha coverage area changes with time is reconstructed and simulated using the model connected in series, determines the environmental factor modulation effect value, and then the key control degree of each environmental factor on enteromorpha competitive growth process is clear.

The invention belongs to the technical field of marine ecological engineering and mariculture, and particularly relates to a seaweed debris food supply method suitable for various bottom sowing marine products. The method comprises the following steps: 1, system planning and layout: based on environmental parameters of a target sea area, laying a modular seaweed field at the upstream or above a bottom sowing culture area; step 2, deploying and cultivating a seaweed farm, namely inoculating seaweed seedlings on the attachment substrate of the algal reef body of the modularized seaweed farm, and adjusting the suspension depth of the algal reef body to enable the algal reef body to be in an optimal photosynthesis growth layer; 3, chipping production and promotion, wherein seaweed grows on the algal reef body, and seaweed chippings are generated; 4, directional sedimentation and supply of debris: the seaweed debris is settled and transported to a bottom sowing culture area by utilizing ocean current; and 5, system monitoring and dynamic optimization: monitoring seaweed growth, debris sedimentation and bottom sowing marine product growth states, and dynamically adjusting the suspension depth and / or debris generation rate of the algal reef body based on a monitoring result.

This invention discloses a method for classifying and naming foraminiferous mixed sedimentary rocks, comprising the following steps: S1, identifying and classifying the rock composition to obtain initial values ​​for the content of three types of components, including terrigenous clastic components, low-energy / chemical carbonate components, and biogenic calcareous components; the low-energy / chemical carbonate components include mud, and the biogenic calcareous components include foraminifera; S2, identifying, classifying, and statistically analyzing the infilling components of foraminifera to obtain statistical data on the infilling components and calculating the foraminifera infilling rate; S3, based on the initial values ​​of the three types of components, combined with the statistical data on the infilling components and the foraminifera infilling rate, calculating the final values ​​of the content of the three types of components; S4, based on the final values ​​of the content of the three types of components, using a pre-established triangular diagram with the three types of components as endmembers, determining the final classification and naming of the rock. This invention improves the method for classifying and naming foraminiferous mixed sedimentary rocks by optimizing the component classification and introducing foraminiferal infilling component parameters.

The present application envisages a vapor collection system usable on extraterrestrial celestial bodies for collecting target gaseous atoms and molecules (species) floating in a shielded environment having a pressure equal to or less than 1 bar. In one embodiment, a shielded environment is defined within a cover and skirt arrangement that lies over granular soil, in one embodiment, the granular soil is a topsoil layer. Advantageously, the topsoil layer beneath the cover is substantially free of loose rocks that can reduce mining efficiency and / or obstruct sealing of the cover from the surface of the topsoil layer. Thus, certain embodiments contemplate the use of a zero tailing device to exploit a topsoil layer that utilizes a front plough to clear loose rock at a location on the topsoil layer where a cover is to rest, and uses a redeposition blade to collect and redeposit the cleared loose rock behind the cover.

A robotic system for use within a fluid environment is provided. The robotic system may comprise a robot, a vacuum nozzle, an electromagnetic guide wire, and a control panel. The robotic system functions to aid in the production and / or collection of microbial biomass, plant biomass, debris, waste, suspended solids, suspensions, and other substances that are present in fluid suspensions within aquatic systems, marine environments, reactors, and photobioreactors, as well as submerged or partially submerged spaces.

The invention relates to the technical field of fish culture, and discloses a water circulation system of culture water for a culture work ship, the water circulation system comprises a culture cabin, a water delivery mechanism and a filtering device, the top of one side of the culture cabin is communicated with a water outlet, the bottom of the other side of the culture cabin is communicated with a water inlet, and the water outlet end of the water delivery mechanism is communicated with the water inlet; according to the invention, multiple groups of parallel filtering units are formed by staggering the elastic stand columns, the elastic filtering hairs and the separation rods, and are matched with multiple groups of through grooves I symmetrically formed in the side wall of the shell, so that on one hand, efficient pretreatment filtering of seawater is realized, and impurities such as plankton, silt and organic debris in a marine water body can be effectively removed; the water is prevented from entering a culture cabin to pollute water quality or influence the health of cultured organisms, and the cleaning requirement of culture water is met; on the other hand, when the filtering device is not used, ocean current can penetrate through the first through grooves to wash impurities attached to the elastic stand columns, the elastic filtering bristles and the separation rods, and attachment and accumulation of the impurities on the filtering structure are greatly reduced.

The invention discloses a bioclastic limestone sedimentary mode construction method and system, and belongs to the technical field of carbonate rock sedimentary, and the bioclastic limestone sedimentary mode construction method comprises the steps of reversely deducing biological types and rock structures, and carrying out primary correction and secondary correction on a theoretical sedimentary mode. By adopting multiple geological control factors, tectonic scene control, sedimentary environment control, sequence stratigraphic cycle control and Wafer facies law control, the accuracy of the model is improved under the control of the multiple geological factors, the model is matched with geological cognition of different subjects, original sedimentary biological debris is reversely deduced on the basis of a diagenetic mode, and the stratum sequence stratigraphic cycle control and the Wafer facies law control are combined. The interference of diagenesis is eliminated; according to the biological shell particle size and the structure maturity, the concept deposition mode is continuously corrected, and the defects that the bioclastic limestone is subjected to non-in-situ deposition, and the indication of organisms to the deposition environment is weak are overcome.

The present application contemplates a vapor collection system that can be used on extraterrestrial bodies for collecting target gaseous atoms and molecules (matter) that are floating in a shielded environment at a pressure equal to or less than 1 bar. The shielded environment is confined within a cover and skirt arrangement that is positioned above a granular soil, which in one embodiment is a regolith layer. Advantageously, the regolith layer beneath the cover is substantially free of loose rock that would reduce the efficiency of the mining operation and / or interfere with the sealing of the cover to the surface of the regolith layer. Accordingly, certain embodiments contemplate the use of a zero-tailings arrangement to mine the regolith layer that utilizes a front plow to clear loose rock at the location on the regolith layer where the cover is to be deposited and uses a re-deposition blade to collect and re-deposit the cleared loose rock behind the cover.