Abstract
Minerals in the shale, the coal matrix, and the nonsystematic cleat set are interpreted to represent authigenesis in a low-permeability environment (closed-system alteration); however, the assemblage sudoite + tosudite + rectorite in the systematic cleat set is interpreted to be the result of one or two stages of hydrothermal alteration (open-system alteration). We suggest that differences in minerals between the two nearly perpendicular cleat sets are the result of permeability differences which were maintained by an anisotropic lateral stress field created by plate convergence during the Alleghanian orogeny. -from Authors
| Original language | English (US) |
|---|---|
| Pages (from-to) | 825-839 |
| Number of pages | 15 |
| Journal | American Mineralogist |
| Volume | 75 |
| Issue number | 7-8 |
| State | Published - Jan 1 1990 |
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ASJC Scopus subject areas
- Geophysics
- Geochemistry and Petrology
Cite this
Clay mineral authigenesis in coal and shale from the Anthracite region, Pennsylvania. / Daniels, E. J.; Altaner, Stephen P.
In: American Mineralogist, Vol. 75, No. 7-8, 01.01.1990, p. 825-839.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Clay mineral authigenesis in coal and shale from the Anthracite region, Pennsylvania
AU - Daniels, E. J.
AU - Altaner, Stephen P
PY - 1990/1/1
Y1 - 1990/1/1
N2 - Minerals in the shale, the coal matrix, and the nonsystematic cleat set are interpreted to represent authigenesis in a low-permeability environment (closed-system alteration); however, the assemblage sudoite + tosudite + rectorite in the systematic cleat set is interpreted to be the result of one or two stages of hydrothermal alteration (open-system alteration). We suggest that differences in minerals between the two nearly perpendicular cleat sets are the result of permeability differences which were maintained by an anisotropic lateral stress field created by plate convergence during the Alleghanian orogeny. -from Authors
AB - Minerals in the shale, the coal matrix, and the nonsystematic cleat set are interpreted to represent authigenesis in a low-permeability environment (closed-system alteration); however, the assemblage sudoite + tosudite + rectorite in the systematic cleat set is interpreted to be the result of one or two stages of hydrothermal alteration (open-system alteration). We suggest that differences in minerals between the two nearly perpendicular cleat sets are the result of permeability differences which were maintained by an anisotropic lateral stress field created by plate convergence during the Alleghanian orogeny. -from Authors
UR - http://www.scopus.com/inward/record.url?scp=0025690960&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025690960&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0025690960
VL - 75
SP - 825
EP - 839
JO - American Mineralogist
JF - American Mineralogist
SN - 0003-004X
IS - 7-8
ER -