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The recovery of paleomagnetic polarities from cyclothemic sediments in the carboniferous Appalachian Basin, USA
Author(s) -
Cain B.,
Payne M. A.,
Shulik S.,
Donahue J.,
Rollins H. B.,
Schmidt V. A.
Publication year - 1979
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl006i004p00261
Subject(s) - carboniferous , geology , clastic rock , terrigenous sediment , paleomagnetism , paleontology , stratigraphy , structural basin , tephra , paleozoic , silt , geochemistry , volcano , tectonics
Using a cryogenic magnetometer, reliable paleomagnetic polarities may be recovered for a wide variety of lithofacies present in Carboniferous cyclothemic sediments from the Appalachian Basin. The most reliable recorders are shales and limestones whose clastic fractions are dominated by silt and fine sand‐sized terrigenous grains. Coarse sandstones and limestones whose clastics are dominated by clays are poor recorders, while fine‐grained sandstones will generally yield polarities but not good pole positions. A comprehensive magneto‐stratigraphy for the Carboniferous should be obtainable.