Characterization of Iron Grains near the P/T Boundary in the Meishan Section of China
The Meishan section of China has been confirmed as the "Global Stratotype Section and Point" of the P/T boundary. In the section, the authors found several types of iron grains, including pyrite, pure iron grains and goethite. From the research of macro minerals, it is easy to find that the grains r...
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Published in | Acta geologica Sinica (Beijing) Vol. 80; no. 1; pp. 46 - 51 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Oxford, UK
Blackwell Publishing Ltd
01.02.2006
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Subjects | |
Online Access | Get full text |
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Summary: | The Meishan section of China has been confirmed as the "Global Stratotype Section and Point" of the P/T boundary. In the section, the authors found several types of iron grains, including pyrite, pure iron grains and goethite. From the research of macro minerals, it is easy to find that the grains rich in iron appear from the bottom of the event layer of the section. In other words, it is probably residue of the geochemical catastrophe of that time. Therefore, it is important to trace the source of these iron grains and their relationships, which probably provides evidence for volcanic eruption or impact-volcanoes and has directive significance to the crisis during the P/T transitional period. Through the study of the characterization and relationships of these iron grains, the authors make a preliminary discussion on the P/T mass extinction. |
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Bibliography: | 11-2001/P Meishan section, P/T boundary, pyrite, goethite, iron grain P618.2 ark:/67375/WNG-09R3X0PX-Q istex:691642C2FD53054324DCEBFBD01D3B5F62F249B2 ArticleID:ACGS794 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1000-9515 1755-6724 |
DOI: | 10.1111/j.1755-6724.2006.tb00794.x |