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Showing 1 to 8 of 8 for “"stratigraphic control"”.
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Stratigraphic control and distal hydrothermal footprint of the Ursa Zn-Pb-Ag prospect, Selwyn Basin, Yukon Territory, Canada
… deposit. The present study aimed to understand stratigraphic control on the location of the prospect and to determine the distal alteration signatures of the Ursa prospect. The research involved detailed fieldwork across Ursa to map its stratigraphic setting and to determine the …
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Controls on mineralisation in the Cadeby formation (lower magnesian linestone)
… a certain geographical area and, s betimes, one stratigraphic horizon. Although some occurrences are fault controlled, the majority have a stratigraphic control related to both carbonate facies and diagenetic history. High energy carbonate facies and bryozoan patch reefs are devoid of …
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Applications of time series analysis to geophysical data
… time series covering the interval 25-127 kybp. Stratigraphic control is provided by counts of planktonic toraminifera, and empirical orthogonal function analysis shows a significant decrease in sedimentation rate at the interglaciai/glacial transition. The sediments are magnetically stable and …
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Mesozoic geology of the Agulhas Bank, South Africa
… These reflector horizons were tied to stratigraphic control points in the boreholes. A stratigraphic framework was erected and correlations were established by means of a study of borehole cuttings samples, cores and sidewall cores and a variety of wireline logs. The existing Mesozoic …
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Paleozoic stratigraphy as an ore control of hydrothermal, base-metal, sulfide deposits in New Mexico
<p>"Until now the concept or regional stratigraphic control of hydrothermal ore deposits has not received much attention in the literature as a possible exploration guide for locating additional ore bodies. This concept is applied on a regional scale to Paleozoic strata in thirteen mining districts …
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Karstification of the Pennyroyal Plain Behind the Retreating Chester Escarpment: Warren, Simpson & Logan Counties, Kentucky
… layer, but instead was held on the surface by a stratigraphic control (spillover layer) that prevented subterranean stream invasion.</p> <p>Dye traces conducted on groundwater flow in the sinkhole plain revealed that the area drainage pattern is changing as surface streams invade the subsurface …
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Antarctic glacial chronology : new constraints from surface exposure dating
… ages are widely scattered, but independent stratigraphic control provided by 14C,U series, and surface exposure dates of correlative drifts in McMurdo Sound allows evaluation of prior exposure and cover. Older moraines up to 350 meters above the stage 2 ice limit record earlier thickening of …
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The Bays formation (Middle Ordovician) and related rocks of the southern Appalachians
… Tennessee. The Bays Formation in its maximum stratigraphic development is equivalent to the succession that includes the Bowen, Witten, Moccasin, and Eggleston formations of middle belts in the Appalachian Valley. The Bays at its type locality in the Bays Mountain synclinorium in northeastern …