Permeability data for impact breccias imply focussed hydrothermal fluid flow

John Parnell; Colin W. Taylor; Scott Thackrey; Gordon R. Osinski; Pascal Lee

doi:10.1016/j.gexplo.2009.12.002

Permeability data for impact breccias imply focussed hydrothermal fluid flow

John Parnell, Colin W. Taylor, Scott Thackrey, Gordon R. Osinski, Pascal Lee

Geology and Geophysics

Dept Earth Sci Phys & Astron

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

New measurements of permeability from 14 samples of impact breccia in meteorite impact craters all indicate values of 1 mD or lower. These values are low and suggest that fluid flow through impact craters, evidenced by hydrothermal systems in numerous craters, is predominantly through fracture systems. Mineral precipitation by circulating fluids would eventually seal the fractures. The focussing of hydrothermal fluid flow in fractures emphasizes their importance as potential sites for microbial colonization, and suggests that the sealing minerals are good targets to search for evidence of life. (C) 2010 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	171-175
Number of pages	5
Journal	Journal of Geochemical Exploration
Volume	106
Issue number	1-3
Early online date	21 Dec 2009
DOIs	https://doi.org/10.1016/j.gexplo.2009.12.002
Publication status	Published - 2010

Keywords

Astrobiology
Hydrothermal systems
Impact crater
Permeability
Devon Island
Mars
Crater
Systems
Canada
Exploration
Chicxulub
Methane

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10.1016/j.gexplo.2009.12.002

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title = "Permeability data for impact breccias imply focussed hydrothermal fluid flow",

abstract = "New measurements of permeability from 14 samples of impact breccia in meteorite impact craters all indicate values of 1 mD or lower. These values are low and suggest that fluid flow through impact craters, evidenced by hydrothermal systems in numerous craters, is predominantly through fracture systems. Mineral precipitation by circulating fluids would eventually seal the fractures. The focussing of hydrothermal fluid flow in fractures emphasizes their importance as potential sites for microbial colonization, and suggests that the sealing minerals are good targets to search for evidence of life. (C) 2010 Elsevier B.V. All rights reserved.",

keywords = "Astrobiology, Hydrothermal systems, Impact crater, Permeability, Devon Island, Mars, Crater, Systems, Canada, Exploration, Chicxulub, Methane",

author = "John Parnell and Taylor, {Colin W.} and Scott Thackrey and Osinski, {Gordon R.} and Pascal Lee",

year = "2010",

doi = "10.1016/j.gexplo.2009.12.002",

language = "English",

volume = "106",

pages = "171--175",

journal = "Journal of Geochemical Exploration",

issn = "0375-6742",

publisher = "Elsevier",

number = "1-3",

}

TY - JOUR

T1 - Permeability data for impact breccias imply focussed hydrothermal fluid flow

AU - Parnell, John

AU - Taylor, Colin W.

AU - Thackrey, Scott

AU - Osinski, Gordon R.

AU - Lee, Pascal

PY - 2010

Y1 - 2010

N2 - New measurements of permeability from 14 samples of impact breccia in meteorite impact craters all indicate values of 1 mD or lower. These values are low and suggest that fluid flow through impact craters, evidenced by hydrothermal systems in numerous craters, is predominantly through fracture systems. Mineral precipitation by circulating fluids would eventually seal the fractures. The focussing of hydrothermal fluid flow in fractures emphasizes their importance as potential sites for microbial colonization, and suggests that the sealing minerals are good targets to search for evidence of life. (C) 2010 Elsevier B.V. All rights reserved.

AB - New measurements of permeability from 14 samples of impact breccia in meteorite impact craters all indicate values of 1 mD or lower. These values are low and suggest that fluid flow through impact craters, evidenced by hydrothermal systems in numerous craters, is predominantly through fracture systems. Mineral precipitation by circulating fluids would eventually seal the fractures. The focussing of hydrothermal fluid flow in fractures emphasizes their importance as potential sites for microbial colonization, and suggests that the sealing minerals are good targets to search for evidence of life. (C) 2010 Elsevier B.V. All rights reserved.

KW - Astrobiology

KW - Hydrothermal systems

KW - Impact crater

KW - Permeability

KW - Devon Island

KW - Mars

KW - Crater

KW - Systems

KW - Canada

KW - Exploration

KW - Chicxulub

KW - Methane

U2 - 10.1016/j.gexplo.2009.12.002

DO - 10.1016/j.gexplo.2009.12.002

M3 - Article

SN - 0375-6742

VL - 106

SP - 171

EP - 175

JO - Journal of Geochemical Exploration

JF - Journal of Geochemical Exploration

IS - 1-3

ER -

Permeability data for impact breccias imply focussed hydrothermal fluid flow

Abstract

Keywords

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