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Showing 1 to 20 of 30 for “"Stratigraphic relationships"”.
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Stratigraphic relationships of lower Permian rocks, Johnson County, Wyoming
Includes bibliographical references.
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The structural and stratigraphic relationships in the Paleozoic rocks of eastern North Dakota
… This shale presents two types of potential stratigraphic traps. The fist type is the updip facies change from carbonate to shale in the basal part of the Bottineau interval. The second is the seal effected where the shale overlies the truncated Birdbear and Duperow Formations of Devonian …
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Sequence stratigraphic relationships and facies architecture of Turonian-Campanian strata, Kaiparowits Plateau, south-central Utah
Includes bibliographical references (volume 2 pages 279-315).
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Structural and stratigraphic relationships between the Numidien formation and underlying formations in the westernmost Mogod Mountains, northern Tunisia
… a partially time-equivalent shelf sequence, stratigraphic considerations permit one to conclude that the Numidien is allochthonous in this area. A minimum of 15 kilometers of southeastward tectonic transport may be demonstrated. The structural style of deformation within the Numidien thrust …
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Using high resolution Sr isotope data from the Nama Group, South Africa, to constrain global stratigraphic relationships and continental weathering rates in the terminal Ediacaran
… technique was then applied to a high-resolution stratigraphic transect through terminal Ediacaran carbonate rocks from the Nama Group, collected in South Africa and Namibia. The isotopic signature of these rocks is consistent with other terminal Ediacaran age rocks, with typically slightly …
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Fluvial influence on high-frequency sedimentary cycle geometry: The transition from strandplain to deltaic deposition in the Cretaceous Point Lookout Sandstone, San Juan Basin, Colorado
… absence of fluvial incision predicts many of the stratigraphic relationships observed in the field, and provides the best sequence stratigraphic model for deposition within the study area.
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Soil-Geomorphology and Soil-Stratigraphy in the Lower Pomme De Terre River Valley, Southwestern Missouri
… A composite model of terrace formation and soil-stratigraphic relationships is constructed showing 4 distinct terraces or terrace complexes, T0, T1, T2, and T3. Soils found on these terraces show a chrono-sequence with entisols dominating T0, inceptisols and alfisols with weak argillic horizons …
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Lithofacies And Paleoenvironments Of The Becraft Formation (Lower Devonian) Of New York State
… used as a time-datum for defining the new time-stratigraphic relationships.
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The 2004 and 1861 Tsunami Deposits on Simeulue Island, Western Sumatra
… these studies: Inor, Busong Bay, and Langi Bay. Stratigraphic relationships, geochronologic data, and grain size analyses from these field sites show evidence of a tsunami that occurred in 1861 following a Mw ~8.5 earthquake. A wood fragment collected from an excavation at Inor yielded an age of …
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The sedimentary petrology of carbonate nodules in the Elliot Formation, Karoo Supergroup, main Karoo Basin (South Africa)
… from a) macroscopic field observations of the stratigraphic relationships of the nodules to the sedimentary features of the host rocks; b) sedimentary petrography of the textural features in the nodules; and c) X-ray diffraction for the assessment of the clay composition trapped within the …
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The Stratigraphy of Tell Hesban, Jordan in the Byzantine Period
… and balk drawings. Field ceramic readings and stratigraphic relationships determined the period, stratum, and stage to which a locus belonged.</p> <p>Results. The Byzantine evidence from Tell Hesban fell into four strata. The transition from the Late Roman period was not very distinct from a …
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Crustal History Indicators on Mercury
… impact ejecta. They are of use when establishing stratigraphic relationships between impact basins, since they extend further away from the primary basin than the ejecta blanket, and tend to remain observable for longer. The stratigraphic map of impact basins Aneirin, Sanai and the immediately …
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Structural Controls of the Black Warrior Blind Geothermal System, Washoe-Churchill Counties, Truckee Range, Nevada, USA
… mapping in the area has identified faults and stratigraphic relationships between successive and interfingering Tertiary volcanic sequences that nonconformably overlie Mesozoic plutonic and metamorphic basement. Inversion of kinematic fault data shows the direction of local extension trends …
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The kanarra fold-thrust system -- The leading edge of the sevier fold-thrust belt, southwest Utah
… the Sevier fold-thrust belt in southwest Utah. Stratigraphic relationships constrain the development of the Kanarra fold-thrust system to the Late Cretaceous to Early Eocene (~80 to 50 Ma). Thus the Red Rock Trail thrust records eastward advancement of the Sevier deformation front from the Iron …
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Seismic-stratigraphic analysis of shelf-margin delta/slope fan and basin floor fan on high-latitude and middle-latitude margins (Ross Sea, Weddell Sea and Alabama/West Florida shelf): Paleoclimatic and eustatic implications
… consists of three chapters describing seismic stratigraphic studies in three very different continental margin settings. The first chapter discusses the northwestern Ross Sea, the second discusses the southeastern Weddell Sea and the third discusses the Alabama/west Florida margin. The purpose …
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Carbonate Bodies Within the Basal Swift Formation (Jurassic) of Northwestern North Dakota
… well log section. The areal distribution, stratigraphic relationships, and genesis of the carbonate bodies were determined by using the gamma ray log, the spontaneous-potential log, the resistivity log suite, and megascopic and microscopic core analysis.</p> <p>The carbonate bodies of the …
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Palynology and Age of the Alvord Creek Formation, Steens Mountain, Southeastern Oregon
… Miocene or even uppermost Oligocene.</p> <p>Stratigraphic relationships in Steens Mountain are obscure and may be complicated by normal or thrust faults, as has been suggested by some structural geologists. There is also the possibility that the K/Ar date determined for the tuff overlying the …
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The Carboniferous Courceyan-Chadian) Sedimentary Facies Mosaic of the Keel -Ardagh Area of County Longford, Eire
The stratigraphic relationships and sedimentary environments of the Silurian, Devonian and Lower Carboniferous lithologies in the Keel area are deduced and described. This was accomplished by the analysis of over 10.000M. of diamond drilled core from the area. <br/><br/>The oldest rocks are …
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Tills of Kidder County, North Dakota
… Dakota is by the topographic expression and stratigraphic relationships of the till sheets. In some cases Mankato and Tazewell tills may be differentiated by secondary changes such as the degree of oxidation and joint coatings. The percentages of sand and the percentages of shale in the …
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The Broom Creek Formation (Permian), in southwestern North Dakota: depositional environments and nitrogen occurrence
… of lithofacies, areal distribution, and stratigraphic relationships were determined from oil well logs, mainly the dual laterolog suite and the FDC-CNL log suite, and macroscopic and microscopic core analysis. were examined from four wells. </p><p> The major lithofacies identified are, 1) …
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