A METHOD FOR ANALYSIS OF THE ALTERNATIVE CYCLE CHANGES OF CONTINUOUS SEDIMENT PALEOCLIMATIC PROXY INDICATORS

Abstract

The invention discloses an analysis method for the change of the heterogeneous cycle of the continuous sedimentary paleoclimate proxy index. The method effectively describes the information characteristics of the heterogeneous cycle, and then analyzes the paleoclimate background experienced in the formation process of the sedimentary profile, in order to deeply analyze the paleoclimate region Differences in the comparison, to promote global change research to provide basic technical support. The invention clearly analyzes the magnitude and degree of the process of relative paleoclimate change on the profile; relatively simply and clearly separates multiple heterogeneous cycles, which plays a very important role in analyzing the influence and control mechanism of external factors such as paleoclimate. The present invention solves the problem existing in current technology due to the superposition of heterogeneous cycles and autogenetic cycles in the comprehensive information of paleoclimate proxy indicators, which strongly interferes with the validity of paleoclimate information, affects the accuracy of paleoclimate reconstruction results analysis and global comparative studies question.

Description

technical field [0001] The invention relates to the technical fields of geology, sedimentology and paleoclimate global change, in particular to an analysis method for the change of alternative cycle of continuous sediment paleoclimate proxy index. Background technique [0002] Global climate change is one of the major issues of international environmental diplomacy and national sustainable development. Sediments on the earth's surface, such as loess, paleosol, deep-sea deposits, ice cores, lakes, peat, stalagmites, etc., contain a wealth of global change information such as climate and environment, and play an important role in reconstructing past global change history and predicting future global change trends. play a vital role. [0003] Paleoclimate is an offshoot of past global change. A major source of paleoclimate information is paleoclimate proxy indicators in sediments, such as: rock mineral indicators, biofossil indicators (sporopollen, phytoliths, foraminifers, o...

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Problems solved by technology

[0004] In view of the above problems, an analysis method is designed to solve the problem that the superposition of heterogenous cycles and autogenous cycles in the comprehensive information of paleoclimate proxy indicators strongly interferes with the validity of paleoclimate information and affects the accuracy of paleoclimate reconstruction results and global comparisons. Research Conduct Questions

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