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Title: Origin of late dolomite cement by CO sub 2 -saturated deep basin brines: Evidence from the Ozark region, central United States

Abstract

Studies of fluid inclusions in regionally extensive late dolomite cement (LDC) throughout the Ozark region show that CO{sub 2} effervescence was widespread during dolomite precipitation. On the basis of quantitative analyses of inclusion fluids, reaction-path modeling shows that LDC with trace amounts of sulfides can be deposited by effervescence of a CO{sub 2}-saturated basin brine as it migrates to shallower levels and lower confining pressures. This precipitation mechanism best explains occurences of LDC in the Ozark region and may account for LDC found in sedimentary basins worldwide.

Authors:
; ; ; ; ;  [1]
  1. Geological Survey, Denver, CO (USA)
Publication Date:
OSTI Identifier:
5657170
Resource Type:
Journal Article
Journal Name:
Geology; (USA)
Additional Journal Information:
Journal Volume: 19:4; Journal ID: ISSN 0091-7613
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; ARKANSAS; SEDIMENTARY BASINS; DOLOMITE; ORIGIN; MISSOURI; GEOCHEMISTRY; BRINES; CARBON DIOXIDE; CARBONATE ROCKS; DEPOSITION; ENVIRONMENTAL TRANSPORT; GAS SATURATION; GEOLOGIC MODELS; INCLUSIONS; PRECIPITATION; RESERVOIR FLUIDS; RESERVOIR PRESSURE; SULFIDES; ALKALINE EARTH METAL COMPOUNDS; CALCIUM CARBONATES; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBON OXIDES; CARBONATE MINERALS; CARBONATES; CHALCOGENIDES; CHEMISTRY; DEVELOPED COUNTRIES; FEDERAL REGION VI; FEDERAL REGION VII; FLUIDS; GEOLOGIC STRUCTURES; MAGNESIUM CARBONATES; MAGNESIUM COMPOUNDS; MASS TRANSFER; MINERALS; NORTH AMERICA; OXIDES; OXYGEN COMPOUNDS; ROCKS; SATURATION; SEDIMENTARY ROCKS; SEPARATION PROCESSES; SULFUR COMPOUNDS; USA; 580000* - Geosciences

Citation Formats

Leach, D L, Plumlee, G S, Hofstra, A H, Landis, G P, Rowan, E L, and Viets, J G. Origin of late dolomite cement by CO sub 2 -saturated deep basin brines: Evidence from the Ozark region, central United States. United States: N. p., 1991. Web. doi:10.1130/0091-7613(1991)019<0348:OOLDCB>2.3.CO;2.
Leach, D L, Plumlee, G S, Hofstra, A H, Landis, G P, Rowan, E L, & Viets, J G. Origin of late dolomite cement by CO sub 2 -saturated deep basin brines: Evidence from the Ozark region, central United States. United States. https://doi.org/10.1130/0091-7613(1991)019<0348:OOLDCB>2.3.CO;2
Leach, D L, Plumlee, G S, Hofstra, A H, Landis, G P, Rowan, E L, and Viets, J G. Mon . "Origin of late dolomite cement by CO sub 2 -saturated deep basin brines: Evidence from the Ozark region, central United States". United States. https://doi.org/10.1130/0091-7613(1991)019<0348:OOLDCB>2.3.CO;2.
@article{osti_5657170,
title = {Origin of late dolomite cement by CO sub 2 -saturated deep basin brines: Evidence from the Ozark region, central United States},
author = {Leach, D L and Plumlee, G S and Hofstra, A H and Landis, G P and Rowan, E L and Viets, J G},
abstractNote = {Studies of fluid inclusions in regionally extensive late dolomite cement (LDC) throughout the Ozark region show that CO{sub 2} effervescence was widespread during dolomite precipitation. On the basis of quantitative analyses of inclusion fluids, reaction-path modeling shows that LDC with trace amounts of sulfides can be deposited by effervescence of a CO{sub 2}-saturated basin brine as it migrates to shallower levels and lower confining pressures. This precipitation mechanism best explains occurences of LDC in the Ozark region and may account for LDC found in sedimentary basins worldwide.},
doi = {10.1130/0091-7613(1991)019<0348:OOLDCB>2.3.CO;2},
url = {https://www.osti.gov/biblio/5657170}, journal = {Geology; (USA)},
issn = {0091-7613},
number = ,
volume = 19:4,
place = {United States},
year = {1991},
month = {4}
}