Data set name:	Coquina Oil Berthoud State #3 and #4
Location:		Sect. 16, T9N, R69W, Larimer Co. Colorado
Contributor:		Walter E. Dean
Funding source:	Coquina Oil Company


References:

Arthur, M. A., and Dean , W. E., 1991, A holistic geochemical approach to
cyclomania - Examples from Cretaceous pelagic limestone sequences, in
Einsele, G., Ricken W., and Seilacher, A., eds., Cycles and events in
stratigraphy: Berlin, Springer-Verlag, p. 126-166.

Arthur, M. A., Dean, W. E., Pollastro, R., M, Claypool, G. E., and Scholle,
P. A., 1985, Comparative geochemical and mineralogical studies of two
cyclic transgressive pelagic limestone units, Cretaceous Western Interior
Basin, U.S., in Pratt, L. M., Kauffman, E. G., and Zelt, F. B., eds.,
Fine-grained deposits and biofacies of the Western Interior Seaway:
Evidence of cyclic sedimentary processes:  Society of Economic
Paleontologists and Mineralogists, 1985 Midyear Meeting, Golden, Colorado,
Field Trip Guidebook No. 4, p. 16-27.

Dean, W. E., and Arthur, M. A., 1998, Geochemical expressions of cyclicity
in Cretaceous pelagic limestone sequences:  Niobrara Formation, Western
Interior Seaway, In Dean, W. E., and Arthur, M. A., eds., Stratigraphy and
Paleoenvironments of the Cretaceous Western Interior Seaway, USA:  Society
of Economic Paleontologists and Mineralogists (SEPM), Concepts in
Sedimentology and Paleontology, No. 6.

Abbreviations:  R-E, Rock-Eval pyrolysis; HC,  hydrocarbons; TOC total
organic carbon; ICP, inductively coupled argon plasma spectrometry; XRF,
X-ray fluorescence spectrometry

"BS#3.C&Oisos.txt" file
	Contains results of carbon and oxygen isotope analyses of
whole-rock (wr) sample from the Niobrara Formation in the Berthoud State #3
core.
Variable Names:
	Depth-m	depth in core in meters
	Delta 13C-wr	carbon isotopic composition of whole-rock (wr)
carbonate expressed in the usual per mil delta notation relative to the
University of Chicago Pee Dee belemnite (PDB) marine carbonate standard.
	Delta 18O-wr	oxygen isotopic composition of whole-rock (wr)
carbonate expressed in the usual per mil delta notation relative to the
University of Chicago Pee Dee belemnite (PDB) marine carbonate standard.

"BS#3.ICP.txt " file
	Contains results of inorganic geochemical analyses of samples from
the Niobrara Formation in the Berthoud State #3 core.
Variable Names:
	Depth-m	depth in core in meters
	% Al		percent aluminum by ICP
	% Ca		percent calcium by ICP
	% Fe		percent iron by ICP
	% K		percent potassium by ICP
	% Mg		percent magnesium by ICP
	% Na		percent sodium by ICP
	% P		percent phosphorus by ICP
	% Ti		percent titanium by ICP
	ppm Mn	parts per million manganese by ICP
	ppm As	parts per million arsenic by ICP
	ppm Ba	parts per million barium by ICP
	ppm Cd	parts per million cadmium by ICP
	ppm Ce	parts per million cerium by ICP
	ppm Co	parts per million cobalt by ICP
	ppm Cr-	parts per million cromium by ICP
	ppm Cu	parts per million copper by ICP
	ppm Ga	parts per million gallium by ICP
	ppm La	parts per million lanthanum by ICP
	ppm Li	parts per million lithium by ICP
	ppm Mo	parts per million manganese by ICP
	ppm Nd	parts per million niodymium by ICP
	ppm Ni	parts per million nickel by ICP
	ppm Pb	parts per million lead by ICP
	ppm Sc	parts per million scandium by ICP
	ppm Sr	parts per million strontium by ICP
	ppm Th	parts per million thorium by ICP
	ppm V	parts per million vanadium by ICP
	ppm Y	parts per million yttrium by ICP
	ppm Zn	parts per million zinc by ICP

"BS#4.ICP.txt " file
	Contains results of inorganic geochemical analyses, including
carbon and sulfur,of samples from the Niobrara Formation in the Berthoud
State #4 core.
Variable Names:
	SMPL ID	sample identifier
	Depth-ft	depth in core in feet
	Depth-m	depth in core in meters
	% Al		percent aluminum by ICP
	% Ca		percent calcium by ICP
	% Fe		percent iron by ICP
	% K		percent potassium by ICP
	% Mg		percent magnesium by ICP
	% Na		percent sodium by ICP
	% P		percent phosphorus by ICP
	% Ti		percent titanium by ICP
	ppm Mn	parts per million manganese by ICP
	ppm As	parts per million arsenic by ICP
	ppm Ba	parts per million barium by ICP
	ppm Cd	parts per million cadmium by ICP
	ppm Ce	parts per million cerium by ICP
	ppm Co	parts per million cobalt by ICP
	ppm Cr-	parts per million cromium by ICP
	ppm Cu	parts per million copper by ICP
	ppm Ga	parts per million gallium by ICP
	ppm La	parts per million lanthanum by ICP
	ppm Li	parts per million lithium by ICP
	ppm Mo	parts per million manganese by ICP
	ppm Ni	parts per million nickel by ICP
	ppm Pb	parts per million lead by ICP
	ppm Sc	parts per million scandium by ICP
	ppm Sr	parts per million strontium by ICP
	ppm V	parts per million vanadium by ICP
	ppm Y	parts per million yttrium by ICP
	ppm Zn	parts per million zinc by ICP
	% T-S		percent total sulfur by LECO furnace
	% T-C	percent total carbon by LECO furnace
	% OrgC	percent organic carbon by LECO furnace
	% C-C	percent carbonate carbon by LECO furnace
	% CaCO3-cc	percent calcium carbonate calculated from %CC
	% CaCO3-Ca	percent calcium carbonate calculated from % calcium

"BS#4.Rock-Eval.txt" file
	Contains rersults of Rock-Eval pyrolysis of samples from the
Niobrara Formation in the Berthoud State #4 core.
Variable Names:
	Depth-ft	depth in core in feet
	Depth-m	depth in core in meters
	% Org. C	percent organic carbon
	H-index 	R-E pyrolysis Hydrogen Index in mg HC/g Org. C
	O-index 	R-E pyrolysis Oxygeen index in mg CO2/g Org. C

"BS#4.carbons.txt" file
	Contains results of whole-rock total-, carbonate-, and
organic-carbon analyses of samples from the Niobrara Formation in the
Berthoud State #4 core.
Variable Names:
	Depth-ft	depth in core in feet
	Depth-m	depth in core in meters
	% T-C	percent total carbon
	% Org-C	percent organic carbon
	% C-C	percent carbonate carbon
	% CaCO3-cc	percent calcium carbonate calculated from C-C