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The AAPG/Datapages Combined Publications Database
Showing 625 Results. Searched 196,436 documents.
Geochemistry and Thermal Maturity of the Upper Mississippian Fayetteville Shale Formation, Eastern Arkoma Basin and Mississippi Embayment Regions, Arkansas
M. Ed Ratchford, Lindell C. Bridges
GCAGS Transactions
... geochemistry portion of the study and were analyzed by Humble Geochemical Services of Humble, Texas, using Rock-Eval and Leco Total Organic Carbon (TOC...
2006
An integrated chemostratigraphic and sequence stratigraphic analysis of extended (>1000 ft) lower Permian Wolfcamp cores, Reagan County, southern Midland Basin
Benjamin H. Richards, Matthew Wehner, Michael C. Pope, and Arthur D. Donovan
AAPG Bulletin
... each borehole and, 210 LECO total organic carbon (TOC) measurements (variable spacing, intervals averaging 15 ft [5 m]) from W. D. Van Gonten...
2023
Magnetic Susceptibility, Biostratigraphy, and Sequence Stratigraphy: Insights into Timing of Devonian Carbonate Platform Development and Basin Infilling, Western Alberta, by Michael T. Whalen and Jed Day, #30033 (2005).
Search and Discovery.com
2005
From Radiolarian Ooze to Reservoir Rocks: Microporosity in Chert Beds in the Upper Devonian-Lower Mississippian Woodford Shale, Oklahoma,#10268 (2010)
Neil Fishman, Geoffrey S. Ellis, Stanley T. Paxton, Marvin M. Abbott, Adam R. Boehlke
Search and Discovery.com
... & LECO TOC Illite (wt %) Quantitative XRD QTZ (wt %) • Cherts—low illite content • Mudst—variable, higher illite • Chert—rextal. of rad skeletal parts...
2010
Diagenesis of Organic-Rich Shale: Views from Foraminifera Penetralia, Eagle Ford Formation, Maverick Basin, Texas, #51054 (2014).
Wayne Camp
Search and Discovery.com
..., TOC & Porosity GRI Total Porosity (%) 15 Normalized Calcite (XRD vol%) high low Maverick Giddings 0 Leco TOC (wt%) 8 Matrix Overgrowths TOC...
2014
Depositional Environments and Sediments in the Coastal Zone of Prince Edward Island, Canada
Grant A. Bartlett
Atlantic Geology
.... Total carbon content was determined with a LECO (Laboratory Equipment Corporation) WR-12 Automatic Carbon Determinator. Replicate samples were treated...
1977
Sedimentary Geology and Carbon-Isotope Stratigraphy of Cretaceous Marine Strata in Western Venezuela
Cara Davis, Lisa Pratt, Luis Mompart, Bruno Murat
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... such as ash beds and concretions. Powdered whole-rock samples were run on a LECO C/S 244 analyser for bulk carbon and sulfur contents which...
1994
Geochemistry of Cretaceous Oils and Source Rocks in the Powder River Basin
Mohammad Wahid Rahman, Robert K. Olson, Carl W. Symcox, Sean Bingham
Unconventional Resources Technology Conference (URTEC)
... oils from 13 Cretaceous reservoirs. Source rock data include Leco total organic carbon (TOC), Rock-Eval pyrolysis, and vitrinite reflectance...
2016
Petroleum Source Rock Study, Miocene Rocks of New Ireland, Papua New Guinea
Miryam Glikson
Circum Pacific Council Publications
... Boreham (Australian Bureau of Mineral Resources) using a GORDEL LECO carbon analyzer and a ROCK EVAL II Pyroliser. Stable carbon isotope analyses were...
1988
Comparative Geochemical and Mineralogical Studies of two Cyclic Transgressive Pelagic Limestone Units, Cretaceous Western Interior Basin, U.S.
Michael A. Arthur, Walter E. Dean, Richard M. Pollastro, Peter A. Scholle
Special Publications of SEPM
.... Carbonate contents were also estinated by dividing percent total Ca from the XRF analyses by 0.40 (giving percent CaCO3). The method is valid for most...
1985
Hydrocarbon Genesis and Organic Facies in Cambrian Carbonates of the Eastern Officer Basin, South Australia
David M. McKirdy , Agu J. Kantsler , John K. Emmett , Alan K. Aldridge
AAPG Special Volumes
..., followed by combustion in a Leco induction furnace and measurement of organic carbon as CO2. Powdered core (100-150 g) was Soxhlet-extracted for 24...
1984
Impact of oil emplacement on diagenesis in Cretaceous oil sands
Timothy Bata, John Parnell, Nuhu K. Samaila, John Still
CSPG Bulletin
... were prepared as polished thin sections using method described by Reed (2005). The polished thin sections were examined using an ISI ABT-55 scanning...
2017
Chapter 3: Nanoscale Imaging of Organic Matter and Wettability of Oil-Window Shales
Andrew Fogden, Terri Olson, Andrew G. Christy
AAPG Special Volumes
... vitrinite reflectance or vitrinite reflectance equivalent (VRE from Tmax), geologic age, porosity (helium), TOC (LECO carbon analyzer) and mineral...
2016
Origin of Rhythmical Bedding in Middle Miocene Siliceous Rocks of the Onnagawa Formation, Northern Japan
Ryuji Tada
Journal of Sedimentary Research (SEPM)
... discussion, I use the thickness based on the first method. Rock Types Six rock types were recognized. Rock color was briefly described in the field...
1991
Sulfur in the Changuinola Peat Deposit, Panama, as an Indicator of the Environments of Deposition of Peat and Coal
Steve Phillips, R. Marc Bustin
Journal of Sedimentary Research (SEPM)
... Post method: Canadian Journal of Soil Science, v. 57, p. 109-117. TABATABAI, M.A., 1992, Methods of measurement of sulfur in soils, in Howarth, R.W....
1996
Late Diagenetic Redistribution of Uranium and Disturbance of the U-Pb Whole Rock Isotope System in a Black Shale
S.M. Lev , S.M. McLennan, G.N. Hanson
Journal of Sedimentary Research (SEPM)
... diagenetic phases or the detrital silicate fraction present. Although leaching may not be the ideal method for evaluating the U composition of some...
2000
Secondary Porosity Revisited: The Chemistry of Feldspar Dissolution by Carboxylic Acids and Anions (1)
RONALD K. STOESSELL and EDWARD D. PITTMAN
AAPG Bulletin
... hours) in one of two 0.5 L, titanium-lined (rocking in a 90 degrees cycle every 2 sec) LECO TEM-Pres reaction vessel at 100 degrees C (electric wire...
1990
New insights into the formation mechanism of high hydrogen sulfide–bearing gas condensates: Case study of Lower Ordovician dolomite reservoirs in the Tazhong uplift, Tarim Basin
Jin Su, Shuichang Zhang, Haiping Huang, Yu Wang, Huitong Wang, Kun He, Xiaomei Wang, Bin Zhang, and Huajian Wang
AAPG Bulletin
... reference sample of the natural gas has a carbon isotope value of −32.95‰. The testing sample isotopic calculation method is shown below...
2016
Hydrocarbon-induced bleaching and copper mineralization in the Wingate Sandstone, Paradox Valley, Colorado: Two episodes of fluid migration during the evolution of the Paradox Basin
Timothy J.MacIntyre, Murray W. Hitzman, and Jon P. Thorson
AAPG Bulletin
... and centrifuge. The Millipore filter transfer method was utilized to prepare <4-μm oriented mounts using vacuum filtration and direct transfer to glass slides...
2023
Recent Marine Sediments of Gulf of California: PART 1
Tjeerd H. van Andel
AAPG Special Volumes
... by difference from two carbon analyses with a LECO (FOOTNOTE 3) Carbon Determinator -- one of the untreated sample, and one of an aliquot after treatment...
1964
Modern Nearshore Cold-Temperate Calcareous Sediments in the Troms District, Northern Norway
Andre Freiwald
Journal of Sedimentary Research (SEPM)
... was counted and determined according to their origin. This method was used to quantify the weight percentages of every biogenic particle group within the grain...
1998
Stacked megafans of the Kalahari Basin as archives of paleogeography, river capture, and Cenozoic paleoclimate of southwestern Africa
Georg J. Houben, Stephan Kaufhold, Roy McG Miller, Christoph Lohe, Matthias Hinderer, Meike Noll, Jens Hornung, Reginalda Joseph, Axel Gerdes, Maria Sitnikova, Martin Quinger
Journal of Sedimentary Research (SEPM)
..., Bulletin, v. 42, p. 387– 430. Altuhafi, F., O'Sullivan, C., and Cavarretta, I., 2013, Analysis of an image-based method to quantify the size...
2020
Chapter 2: Lacustrine Source Rocks and Oil Systems Present in the Lower Cretaceous Pre-Salt Section of the Santos Basin, Brazil
M. R. Mello, S. P. Rostirolla, V. Elias, M. Ferreira, A. P. Ahualli, S. Becker, J. E. Dahl, J. M. Moldowan
AAPG Special Volumes
... and then pulverized, homogenized, and dried. The amount of both total and organic carbon present in the rock samples was measured by a LECO organic...
2021
Burial History Analysis of the Pennsylvanian Petroleum System in the Deep Paradox Basin Fold and Fault Belt, Colorado and Utah
Larry Rasmussen, Donald L. Rasmussen
Rocky Mountain Association of Geologists
... 15 cores and over 100 hand samples using LECO and Rock-Eval. Nuccio and Condon (1996) reported up to 11% TOC for the Gothic, Chimney Rock and Cane...
2009
A model for porosity evolution in shale reservoirs: An example from the Upper Devonian Duvernay Formation, Western Canada Sedimentary Basin
Tian Dong, Nicholas B. Harris, Julia M. McMillan, Cory E. Twemlow, Brent R. Nassichuk, and David L. Bish
AAPG Bulletin
...: International Journal of Coal Geology, v. 103, p. 120–131, doi:10.1016/j.coal.2012.05.006. Chen, Z., and C. Jiang, 2016, A revised method for organic...
2019