ROLE OF PORE WATER CIRCULATION DURING THE DEFORMATION OF FORELAND FOLD AND THRUST BELTS.

Terry Engelder

Research output: Contribution to journalConference article

39 Scopus citations

Abstract

Volume-loss strain accompanying pressure solution of calcite occurred within both the Umbria-Marches Apennines of Italy and the Appalachian Mountains of western New York. Data from strain markers show that volume-loss strain was greater within the shallow portions of the Apennines than within the Appalachians. Within the deeper portions of both fold and thrust belts, strain was nearly volume-constant. Calcite solubility data suggest that downward circulation of meteoric water is necessary for the 35% volume-loss strain of the limestones within the Apennines. Strain at a depth of about 1 km was volume-constant and is interpreted as indicative of restricted pore fluid circulation. In the Appalachians, calcite comprises less than 1% of the clastic rocks, and a 10% volume-loss of this calcite may occur during circulation of connate or dehydration water derived from dewatering of the shales.

Original languageEnglish (US)
Pages (from-to)4319-4325
Number of pages7
JournalJournal of Geophysical Research
Volume89
Issue numberB6
Publication statusPublished - Jun 10 1984
EventChem Eff on Water on the Deform and Strengths of Rocks -
Duration: Jun 6 1982Jun 10 1982

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All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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