文档介绍：SEDIMENTOLOGY, STRATIGRAPHY, ANIC GEOCHEMISTRY OF THE
RED PINE SHALE, UINTA MOUNTAINS, UTAH: A PROGRADING DELTAIC
SYSTEM IN A MID-NEOPROTEROZOIC INTERIOR SEAWAY
by
Caroline A. Myer
A thesis submitted in partial fulfillment
of the requirements for the degree
of
MASTER OF SCIENCE
in
Geology
Approved:
__________________________ __________________________
Dr. Carol M. Dehler Dr. W. David Liddell
Major mittee Member
__________________________ __________________________
Dr. Peter T. Kolesar Dr. Byron R. Burnham
Committee Member Dean of Graduate Studies
UTAH STATE UNIVERSITY
Logan, Utah
2008
1457596
1457596
2008
ii
ABSTRACT
Sedimentology, Stratigraphy, anic Geochemistry of the Red Pine Shale,
Uinta Mountains, Utah: A Prograding Deltaic System
in a Mid-Neoproterozoic Interior Seaway
by
Caroline A. Myer, Master of Science
Utah State University, 2008
Major Professor: Dr. Carol M. Dehler
Department: Geology
The Red Pine Shale (RPS; ~1120m thick), uppermost formation of the
Neoproterozoic Uinta Mountain Group, Utah, is anic-rich sedimentary ession
interpreted as a marine deltaic system that delivered immature sediment from the north
that mixed with mature sediment from the east. Multiple data sets suggest regional
climate and sea-level changes associated with anic-carbon burial rates.
Six facies were identified and represent wave-, tidal-, and river-influenced parts of
the distal prodelta to delta front in a marine system. These include the shale facies and
associated concretion facies (distal prodelta), the shale-sandstone facies (proximal
prodelta to delta front), the slump fold facies (proximal prodelta to delta front), and the
sandstone facies and associated pebbly sandstone facies (delta front).
iii
C-isotope values anic-rich shale range from -‰ to -‰ PDB
and TOC values range from % to %. posite C-isotope curve for the RPS
show