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Showing 1 to 20 of 47 for “"Dolomites"”.
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Petrography of the Upper Cambrian Dolomites of Warren County, New Jersey
Made available in DSpace on 2014-12-04T19:14:00Z (GMT). No. of bitstreams: 1 6100224.pdf: 6295129 bytes, checksum: f409c1678ac352424509936fd0f4fe20 (MD5) Previous issue date: 1960
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Hydrogeology at a Hydroelectric Installation on Paleozoic Dolomites at Grand Rapids, Manitoba
Made available in DSpace on 2014-12-09T20:34:11Z (GMT). No. of bitstreams: 1 6500820.pdf: 9633048 bytes, checksum: bc4bb4e30068a5ba68ccbee839a2b2b8 (MD5) Previous issue date: 1964
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Controlling factors of two Middle Triassic carbonate platforms: Latemar and Rosengarten (Dolomites, Northern Italy)
… from Latemar (Upper Anisian/Lower Ladinian, Dolomites) and Concarena (Upper Ladinian/Lower Carnian, Lombardic Alps) stresses the importance and links between subsidence, sedimentation, facies assemblages and cementation throughout the development of Triassic carbonate platforms. High rates of …
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Carbonate Replacement of Detrital Quartz in Upper Cambrian Dolomites of Warren County, New Jersey
Made available in DSpace on 2014-12-04T19:14:07Z (GMT). No. of bitstreams: 1 6104363.pdf: 2121753 bytes, checksum: 30dcd97524c58bcc1eae0969e6956f2a (MD5) Previous issue date: 1961
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Mechanisms of dolomitization in seawater and origin of the Middle Ordovician dolomites in the Illinois Basin
This investigation focuses on the chemistry of dolomitization and the geochemical and petrographic characteristics of the Middle Ordovician limestones and dolostones in the Illinois basin.
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Relative timing of dolomitization and silica cementation in the Cambrian Potosi and Eminence Dolomites in the Illinois Basin, USA
The Late Cambrian Potosi and Eminence Dolomites of the Illinois Basin are currently being considered as targets for subsurface carbon capture, transport and storage (CCS) because of their extensive regional distribution and high intrinsic porosity and permeability. Drill core and outcrop samples …
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Sequence Development and Dolomitization of a Late Jurassic Giant Oil Reservoir, Arab-D Reservoir, Hawiyah (GHAWAR) and Harmaliyah Fields, Saudi Arabia
… term shallowing trend up through the section. Dolomites from the Arab-D reservoir zones 1 to 4, in both fields were studied to better understand their origin. The dolomites are dominantly fabric destructive medium to coarse grained types, and much less common fabric retentive finer grained …
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Regional dolomitization of Early Ordovician, Upper Knox Group, Appalachians
… defined by stable isotope values of "early" dolomites and burial dolomites; and water-rock modeling of trace element and stable isotopic trends. Trace element and stable isotope compositions of least-altered "early" dolomite however, record a memory of a precursor evaporative dolomite. …
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Stratigraphy and petrography of the Wytheville formation in southwest Virginia
… including both equigranular and inequigranular dolomites, calcitic dolomites, magnesian limestones, micrites, pelsparites, siliceous dolomites, and impure beds ranging from silty dolomitic shales to dolomitic siltstones. Between Huddle in Wythe County and Allisonia in Pulaski County, Virginia, …
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Paleofluid Flow, Fracturing and Reservoir Implications in Foreland basins: an example from the Cretaceous Qamchuqa Formation, Kurdistan Iraq
… fracturing and faulting. Five types of pervasive dolomites, three types of saddle dolomites and four types of calcite cements have been identified. Compositionally, the pervasive and saddle dolomites are dominantly poorly ordered, non-ferroan and non-stoichiometric. Both matrix and saddle dolomite …
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Milankovitch-driven cyclicity and climate controlled dolomitization of a Late Triassic carbonate platform, Hungary
… each high frequency cycle. Intertidal-supratidal dolomites are fine grained, Fe²⁺ and Mn²⁺ rich and slightly enriched in δ¹⁸O compared marine calcite cement, and formed from weakly to moderately reducing marine waters. Subtidal dolomites are slightly coarser grained, low in Fe²⁺ and Mn²⁺ and have …
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Geology of the Kent Window area, Wythe County, Virginia
… are the Conococheague formation, limestones and dolomites of Beekmantown age, the Mosheim limestone, the Lenoir and Fetzer limestones and the Liberty Hall black shaly limestone. The window is bounded by a prominent zone of tectonic breccia and brecciated limestones and dolomites nearly a mile …
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The upper Red River Formation (Ordovician) in western North Dakota
… which consist of alternating sequences of dolomites, limestones, and anhydrites. Facies changes, occur within the P interval both on a regional and a local scale, typically from dense limestones to porous dolomites.</p> <p>The Kesson anticline and the basin hinge JJ.ne 1-1ere the most …
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Large-scale hydrothermal dolomitisation in the southwestern Cantabrian Zone (NW Spain) : causes and controls of the process and origin of the dolomitising fluids
… locally filled by later calcite cements. The dolomites display features typical of burial dolomitisation, such as scarce preservation of precursor fabrics, coarse crystallinity, non-planar texture and abundant dolomite of the saddle type. The replacive and void-filling dolomites have a very …
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Investigation of the Geology and Hydrology of Stone County, Missouri to Determine the Extent of Groundwater Contamination
Stone County is underlain by limestones, dolomites, shales and sandstones ranging in age from Ordovician to Mississippian. The exposed sedimentary sequence is approximately 500 feet thick and approximately 2100 feet of unexposed rocks ranging in age from Cambrian to Ordovician make up the complete …
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Development of the Platreef in the northern limb of the Bushveld Complex at Sandsloot, Mokopane District, South Africa
… rocks are represented by reactive siliceous dolomites of the Malmani Subgroup. The Platreef magma caused contact metamorphism and metasomatism of the dolomites, releasing volatiles that entered the reef. These hydrothermal fluids stripped PGE from primary sulphides and redistributed the PGE …
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Hydrogeochemical exploration at Tsumeb
The Precambrian Otavi dolomites in the district of Tsumeb in Namibia are host to base metal mineralization but large tracts of these rocks occupy a mature pediplain and are deeply buried by transported overburden of Kalahari age. This sandy material makes exploration for minerals very difficult. …
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