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The AAPG/Datapages Combined Publications Database
Showing 3,040 Results. Searched 200,636 documents.
Evidence for a Tertiary Low-Angle Shear Zone, Red Hills, Utah, With Implications for a Regional Shear Zone in the Adjacent Colorado Plateau
Florian Maldonado, E. G. Sable, J. J. Anderson
Utah Geological Association
... areas, the top of the shear zone is at the top of an Oligocene sequence of rocks herein called the sedimentary and volcanic rocks of the Red Hills (Trs...
1992
Differentiating Wet and Dry Microseismic Events Induced During Hydraulic Fracturing
Shawn Maxwell, Drew Chorney, Melanie Grob
Unconventional Resources Technology Conference (URTEC)
... the failure of intact rock or by slip on an existing plane of weakness such as a fault or natural fracture. τo σ’min Mean Stress σ’max Figure 1...
2015
DEEP SEA MINERALS
Halfdan Carstens
GEO ExPro Magazine
... the AUV to leave behind a percentage of nodules as habitat corridors to ensure the ecosystem and habitat remains intact. “Our technology is being...
2022
Ungani Oil Field, Canning Basin - Evaluation of a Dolomite Reservoir
David Long, Lionel Esteban, Amy Millar, Anne Forbes, Stuart Weston, Martin Kennedy
Petroleum Exploration Society of Australia (PESA)
... map of the top of the Ungani Dolomite Reservoir mapped on 3D seismic. The overlying Laurel sealing shale is reactive, the instability of which resulted...
2018
A Geological, Engineering and Economic Study of a Portion of the Lloydminster Sparky Pool Lloydminster, Alberta
A. I. Burnett, K. C. Adams
CSPG Bulletin
... by thin shale interbeds. Some authors (Jamieson, 1973 and Vigrass, 1976) have documented a minor unconformity at the top of the zone. This unconformity...
1977
The Reality of the 3-D World
Jack G. Elam
West Texas Geological Society
... are usually carried down intact. Generally, most of these closures have not even been tested. In the past six or seven years most of the larger...
1992
Determination of Local Diffusion Coefficients and Directional Anisotropy in Shale From Dynamic Micro-CT Imaging
Yulai Zhang, Peyman Mostaghimi, Andrew Fogden, Alessio Arena, Adrian Sheppard, Jill Middleton, Ryan T. Armstrong
Unconventional Resources Technology Conference (URTEC)
... that the Permian Basin sub-plug is more intact with fewer fractures. Vertical diffusion mainly occurs in the middle part of the field of view, from matrix...
2017
Tracing Turbidity Current Deposits Down the Slope of an Alpine Basin
Albert Carozzi
Journal of Sedimentary Research (SEPM)
... constituents of these clastic beds are broken or intact reef-organisms, oolites, and clastic minerals, displaying well-characterized graded-bedding...
1957
Cements and In-Situ Widths of Natural Fractures, Almond Formation, Green River Basin, Wyoming
Thomas L. Dunn, Bernabe Aguado, John Humphreys, Ronald C. Surdam
Wyoming Geological Association
... at the top. Shell fragments and oyster shells increase in abundance downward in the sandstone as it assumes a more massive character. The horizontal cores...
1995
Reservoir Facies Architecture of Two Upper Point Bar Ridge Deposits
Arnold H. Bouma , Lars O. Bouma
GCAGS Transactions
... for a few days, and the cuts were gone when we returned. A few cuts near the little island (Fig. 2) remained intact. The youngest exposed ridge is very...
1994
Wetumpka Melange, a New Stratigraphic Unit in Alabama
David T. King, Jr.
GCAGS Transactions
... surface" and the top of "allochthonous materials filling ... partly filling the structure" after impact. Taking Wetumpka's diameter as 6.5 km, apparent...
1998
Algal Cap for a Niagaran (Silurian) Carbonate Mud Mound of Indiana
Daniel A. Textoris
Journal of Sedimentary Research (SEPM)
.... Geologists concerned with this feature tend to agree that it is a cavity, with a relatively flat bottom and digitated top, filled with sparry calcite...
1966
Classification of Faults: DISCUSSION
Chester R. Longwell
AAPG Bulletin
... diminution of lateral pressure would occur at the top of the fold, shear-planes developed at the higher levels would logically die out with depth...
1943
Processes of Conversion of Aragonite to Calcite with Examples from the Cretaceous of Texas
J. Robert Dodd
Journal of Sedimentary Research (SEPM)
... on top of the micrite fillings of the canals. In other cases the envelopes are intact. This suggests that at most a small amount of drusy cement...
1966
Effect of Pleistocene Depositional Heterogeneity on Movement of a Subsurface Crude-Oil Spill, San Patricio County, South Texas
Dutton, Alan R., Hovorka, Susan D., Bennett, Philip C.
GCAGS Transactions
... extensive clay bed at the top of unit 1. TPH concentration in unit 2 is generally lower than in unit 1, and oil is disseminated through the interval. Some...
2002
Coalbed Methane in Late Pennsylvanian to Early Permian Coal, Kerr Basin, Edwards County, Texas
Charles E. Barker, William Heck, Cortland Eble
GCAGS Transactions
... lost at the top of Clear Fork Group and the possible deposition of other overlying Permian to Jurassic strata is Figure 2. Physiographic provinces...
2003
Chapter 1 - Grains: Quartz and Silica
Dana S. Ulmer-Scholle, Peter A. Scholle, Juergen Schieber, Robert J. Raine
AAPG Special Volumes
.... Top: Embayed volcanic quartz from Tertiary Monzonite intrusive from Clark Co., Nevada (PPL | XPL). Bottom: Quartz crystals with adularia (orthoclase...
2014
New Method of Correlation by Resistivity Values of Electrical Logs
A. P. Claudet
AAPG Bulletin
... the sections of the resistivity log corresponding to sands, the self-potential curves being kept intact. These charts are referred to as "Shale Take...
1950
Diagenesis of the Mt. Simon and Rose Run Sandstones in Western West Virginia and Southern Ohio
M. T. Heald, G. F. Baker
Journal of Sedimentary Research (SEPM)
.... Illite does occur on top of the conformal secondary quartz envelopes and on secondary feldspar. However, it appears that the original clay...
1977
Sedimentary Processes on the Continental Slope of New England
Joseph C. MacIlvaine , David A. Ross
Journal of Sedimentary Research (SEPM)
... of the continental slope. Some of the material removed by slumping is emplaced at the foot of the continental slope as relatively intact blocks of 1 to more than...
1979
Proper Completion Critical for Horizontal Wells: Special Report January 1990
Dr. S. D. Joshi
AAPG Special Volumes
... free water content than that used for vertical well cementing. In a horizontal well, because of gravity, free water segregates near the top portion...
1991
Offshore Transport and Sand-Body Formation: Evidence from a Steep, High-energy Shoreface, Southeastern Australia
Michael E. Field, Peter S. Roy
Journal of Sedimentary Research (SEPM)
... in offshore and alongshore directions. The contact between the rocky upper shoreface and the top of the sand body is marked by numerous small, seaward-widening...
1984
A Study of Rock-Water Interaction and Simulation of Diagenesis in the Upper Almond Sandstones of the Red Desert and Washakie Basins, Wyoming
Indu D. Meshri, Jana M. Walker
AAPG Special Volumes
... in the section on diagenesis. Plagioclase remains intact up to the first 5 m.y. and then begins to dissolve at 6 m.y. This dissolution episode lasts...
1990
Some Characteristics of Carbonate Sedimentation in Black Sea: Sediments
E. S. Trimonis
AAPG Special Volumes
... in the top layer of the bottom deposits. In the deep-water zone the finely dispersed carbonate sediments of the abyssal plain are the richest in carbonate...
1974
Carbon Isotope Excursions and Crinoid Dissolution at Exposure Surfaces in Carbonates, West Texas, U.S.A.
J.A.D. Dickson, A.H. Saller
Journal of Sedimentary Research (SEPM)
... with varying amounts of dolomite. The stereom structure can be preserved intact, with stereom and pore system clearly differentiated, it can be preserved...
2006