Controls on fault-zone architecture in poorly lithified sediments, Rio Grande Rift, New Mexico: Implications for fault-zone permeability and fluid flow
MR Heynekamp, LB Goodwin… - Geophysical …, 1999 - ui.adsabs.harvard.edu
We have studied the geometry and continuity of structures and diagenetic features of a
normal growth fault in poorly lithified sediments. Fault-zone width and complexity vary
spatially with the grain-size distribution of faulted beds. The fault zone is narrow and
structurally simple where it cuts either thick beds with> 20% clay and silt, or thin beds that
alternate between> 20percnt and≤ 20percnt clay and silt. Where the majority of beds
juxtaposed by the fault are≥ 80percnt sand and gravel, and clay beds are thin and rare, the …
normal growth fault in poorly lithified sediments. Fault-zone width and complexity vary
spatially with the grain-size distribution of faulted beds. The fault zone is narrow and
structurally simple where it cuts either thick beds with> 20% clay and silt, or thin beds that
alternate between> 20percnt and≤ 20percnt clay and silt. Where the majority of beds
juxtaposed by the fault are≥ 80percnt sand and gravel, and clay beds are thin and rare, the …
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