Teaching demonstration device for turbidity sediment experiment and teaching method of teaching demonstration device

Abstract

The invention provides a teaching demonstration device for a turbidity sediment experiment and a teaching method of the teaching demonstration device, and relates to an experimental demonstration device. A water tank body comprises water tanks A (6) and water tanks B (9) which are arranged oppositely in the vertical direction. According to the teaching demonstration device for the turbidity sediment experiment, four blending formulas for water, mud and sand content of sedimentary turbidity current are provided according to the characteristics of four types of sedimentary turbidity current including gravel-rich type sedimentary turbidity current, sand-rich type sedimentary turbidity current, sand-mud mixed type sedimentary turbidity current and mud-rich type sedimentary turbidity current, the geological characteristics of each geologic sedimentary turbidity current are distinguished in a refined manner, the movement characteristics of each type of sedimentary turbidity current are comparatively demonstrated by the two water tanks with adjustable slope, the turbidity current flow rate is adjusted according to size and length of the slope, then sediment discharge in the turbidity current is observed, the geological knowledge of turbidity sediment is obtained, strictness and completeness of experimental operation are guaranteed, and students are helped to master the geological turbidity sediment related knowledge comprehensively and finely.

Description

technical field [0001] The invention relates to an experiment demonstration device, in particular to a turbidity flow deposition experiment teaching demonstration device. Background technique [0002] The generalized turbidity current is underwater gravity flow. Turbidity current in a narrow sense is a special form of underwater gravity flow, which is a mixture of water and a large amount of sand and mud supported by a self-suspended turbulent flow mechanism, which moves at the bottom of the water (deep water area below the wave base) density flow. Turbidity currents mostly occur in continental margins and are often triggered by factors such as earthquakes, landslides, and storm waves. They are an important mechanism for transporting terrigenous materials from shallow seas to deep seas, and can form turbidity current deposits on continental margins or ocean basins. Paleoturbidity current deposits formed during geological periods often become oil reservoirs. As a unique ty...

Images