Study of fluid circulation through the chicxulub crater using Rock-Eval pyrolysis and fluid inclusions
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
The aim of the study is to evaluate fluids circulation through the Chicxulub crater, and to determine the composition of hydrothermal fluids after the impact. Rock-Eval pyrolysis and fluid inclusion micro-thermometry analyses were performed. The technique has been routinely used for about fifteen years and has become a standard tool for hydrocarbon exploration. Rock-Eval pyrolysis reveals the distribution of organic and mineral carbon affected by the impact and later affected by hydrothermal activity. All measured inclusions are primary and were found in basement samples only. Both the fluid inclusions data and Rock-Eval pyrolysis show that composition and temperature of the fluids changed as the fluids migrated though crater rocks. An evolution of temperatures occurs (vertical, horizontal, or both), from the surface and from the center of the crater; this spatial evolution is consistent with model of Abramov and Kring, showing a thermal evolution of temperature with depth in the crater as well as its influence on the hydrothermal system. Post-impact fluid circulation modifies the temperature distribution.
Date Issued
2022-02
Date Acceptance
2021-12-28
Citation
Applied Geochemistry, 2022, 137, pp.1-12
ISSN
0883-2927
Publisher
Elsevier BV
Start Page
1
End Page
12
Journal / Book Title
Applied Geochemistry
Volume
137
Copyright Statement
© 2022 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Natural Environment Research Council (NERC)
Identifier
https://www.sciencedirect.com/science/article/pii/S0883292721003255?via%3Dihub
Grant Number
NE/P005217/1
Subjects
0402 Geochemistry
0502 Environmental Science and Management
Geochemistry & Geophysics
Publication Status
Published
Article Number
105194
Date Publish Online
2022-01-05