|Table of Contents|

Geoscience Significance and Identification of Meteorite Impact Structure(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2008年第03期
Page:
234-239
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Geoscience Significance and Identification of Meteorite Impact Structure
Author(s):
FANG Jian-jun1WANG Jian-qiang1QIU Xin-wei1GAO Fei1GAO Xin-kui2
1.Department o f Geology, Northwest University,Xian 710069, Shaanxi, China; 2.Operation Engineering Company, Yanchang Oilfield, Yan' an 716000, Shaanxi, China)
Keywords:
meteorite impact geoscience significance impact structure identification
PACS:
P69
DOI:
-
Abstract:
Meteorite impact is one of the important agents that caused the palaeoclimatic environment catastrophe and the extinction and rebirth of creatures in the geologic history during the evolution of planets and satellites in the solar system, and it is also the very common event during the nonage evolution of the earth. The study of meteorite impact and its influence is necessary to investigate the evolution of the earth and has an important significance both in the basic theories and practical applications. Nowadays, the studies on the geoscience significance of meteorite impact mainly focus on the relationship between impact event and the earths environment catastrophe, the life successions on the earth, the plate tectonic dynamics and the concentration in ore-formation etc. The impact structures are the most evident and direct records to identify the meteorite impact events and their characters of shape, size, lithology, mineralogy, geochemistry, structures and geophysics are the important signs to identify the impact structure.

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Last Update: 2008-09-20