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Showing 9,906 Results. Searched 195,364 documents.
Guidebook: Texas Uranium Belt
A. Weinzapfel
South Texas Geological Society Special Publications
... cemented with silica. The silica is believed to have been derived from humic-bearing waters expelled downward from the lignite. The silica-cemented...
1981
The Relation of Deep-Seated Faults to the Surface Structural Features of Central Montana
W. T. Thom, Jr.
AAPG Bulletin
..., there needs must have been a contemporaneous depression of a trough (Bighorn Basin) to the east under the oblique downward thrust of the uplifted mass...
1923
Origin of Stylolites: A DISCUSSION
B. M. Shaub
Journal of Sedimentary Research (SEPM)
.... V., 1858, Ueber die Entstehung der Stylolithen: Jahresh. d. Verein f. Vaterl. Naturk, in Wurttemberg, p. 292 BONNYCASTLE, R. H., 1831, Continuation...
1955
Pennsylvanian Sedimentation in Arkansas Coal Field
Thomas A. Hendricks
AAPG Bulletin
...: (1) that was progressively warped downward and whose north margin migrated northward across the area but lay across the central part of the coal field...
1937
Surani, Rumania, Anticline with Two Erosion-Depleted, Non-Contemporaneous Oil Reservoirs
Ray P. Walters
AAPG Bulletin
... (Hlauschek, 1950; Walters, 1940). There is good reason, with these conditions, for believing the oil has simply migrated downward from the Meotic...
1960
Patterns of Dynamic Pressure Increment of Formation-Fluid Flow in Large Drainage Basins, Exemplified by the Red Earth Region, Alberta, Canada
Jozsef Toth
CSPG Bulletin
... table (which is considered on this scale to coincide with the land surface), flow is downward, parallel and upward in the three areas, respectively...
1979
MISSISSIPPIAN ROCKS IN THE SASKATCHEWAN PORTION OF THE WILLISTON BASIN: A REVIEW
DR. J.G.C.M. FULLER
Williston Basin Symposium
... the centre, and similarly that oolitic limestones typical of the "Mission Canyon" encroached downward in the same direction into the upper part...
1956
Structure of the Bull River Valley Near Latitude 49° 35'
G. B. Leech
CSPG Bulletin
... tear fault in the Hosmer thrust is a structural continuation of the Dibble fault. The rocks in the Bull River valley above Dibble Creek belong...
1962
Australian Exploration Review 2018 reveals encouraging signs of revival
Matthew Quinn, Frances Hulbert
Petroleum Exploration Society of Australia (PESA)
... 2018, the total area under licence in Australia increased by just under 92,000km2. This was a reversal of a downward trend seen since 2014. By far...
2019
Monitoring Sea-floor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico
Erika Geresi, Ross Chapman, Tom McGee, Bob Woolsey
AAPG Special Volumes
..., or, alternatively, by downward continuation using the same wave equation method, which extrapolates the source field. The images of both fields...
2009
Petrology of Carbonate Nodules from a Cambrian Tidal Inlet Accumulation, Central Texas
Henry S. Chafetz
Journal of Sedimentary Research (SEPM)
... constituents rest on the upper surfaces of large skeletal grains in geopetal fashion; consequently, the calcite cement is best developed as downward...
1979
The Balabac Sub-Basin Southwestern Sulu Sea, Philippines
Leslie R. Beddoes, Jr.
Southeast Asia Petroleum Exploration Society (SEAPEX)
... shelfal area of Sabah. There is, however, an apparent continuation of NE-SW structural axis orientation in the Paleogene melange from the southern two...
1976
The Geology of the 1977 Offshore Hydrocarbon Discoveries in the Beaufort-Mackenzie Basin, N.W.T.
P. B. Jones, J. Brache, J. K. Lentin
CSPG Bulletin
... of the Aklavik Arch. The southwestern part of the basin is underlain by the seaward continuation of deformed Proterozoic to Cretaceous sediments...
1980
Salt Movement on Continental Slope, Northern Gulf of Mexico: 2. The Concepts
C. C. Humphris Jr.
AAPG Special Volumes
... panel is continuation of right end of upper panel. Interpreted salt features shown by pattern. Prominent scarp in bottom panel is Sigsbee Escarpment...
1978
Oil and Gas Exploration Developments in Oklahoma during 1962
F. L. Mackey , Jack P. F. Bowles, Jr.
AAPG Bulletin
... decreased 1.3% during 1962 after it had advanced by 16.3% during 1961. There has been a downward trend in exploratory drilling since 1959. The trend...
1963
Structure and Stratigraphy of China Basin
K. O. Emery , Zvi Ben-Avraham
AAPG Bulletin
... Sea: (1) acoustic basement in the southern part of the basin that may be a continuation of the igneous and metamorphic rocks beneath the adjacent shelf...
1972
Economic Evaluation of Reykjanes Thermal Brine Area, Iceland
Sveinbjorn Bjornsson , Stefan Arnorsson , Jens Tomasson
AAPG Bulletin
...) The Reykjanes thermal brine area is in southwesternmost Iceland on the subaerial continuation of the Reykjanes ridge. This area is unique among...
1972
Salt Movement on Continental Slope, Northern Gulf of Mexico
C. C. Humphris, Jr.
AAPG Bulletin
...------------------------------ Fig. 2. North-south sparker profile, line 90, Figure 1. Profile in two parts, left end of lower panel is continuation of right end...
1979
Superposed Tectonism: Northern Idaho-Wyoming Thrust Belt
Marshall K. Corbett
Rocky Mountain Association of Geologists
.... Indeed, the area is immediately adjacent to recent gas discoveries of economic importance, and represents a northward continuation of thrust-fold...
1982
Limitations of Ground Water as Aid in Determination of Hidden Geologic Structure
E. K. Soper
AAPG Bulletin
... downward at times of rainfall through the soil, alluvium, or porous rock near the surface, eventually reaches a level below which the rock is saturated...
1932
Depositional Systems Upper Cretaceous Mancos Shale and Mesaverde Group, Northwestern Colorado: Part 1
J. Michael Boyles, Alan J. Scott
Rocky Mountain Section (SEPM)
.... To the downward continuation of this section see Figure 5. These fluvial systems flowed across the coastal plain and removed the uppermost portion...
1981
Rocky Mountain Foreland Areas: Chapter 3
W. G. Brown
AAPG Special Volumes
... experiments using the concept of vertical uplift. His resulting models showed the upthrust fault shape, which is concave downward. In addition...
1988
Escape traces associated with Rafinesquina alternata, an Upper Ordovician strophomenid brachiopod from the Cincinnati Arch region
Benjamin F. Dattilo, David L. Meyer, Keith Dewing, Matthew R. Gaynor
PALAIOS
... downward to the right, and the mud-filled moat on this side seems to disappear into the shelly hash. Specimen FIP-24 (Figs. 8J–N) is a more typical...
2009
Structure of Southeastern Part of Tejon Quadrangle, California
Thomas Clements
AAPG Bulletin
... in the downward cutting of the streams are represented. The material is unconsolidated and poorly bedded, and varies in composition from place...
1937
Subsurface Geology of South-Central Pawnee County, Oklahoma
Richard A. Berryhill
Oklahoma City Geological Society
... (Wolfcampian) and Upper Pennsylvanian (Virgilian) beds, downward to those of Cambrian (?) age. Numerous wells have been drilled into the upper part...
1964