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Showing 1 to 19 of 19 for “"allochthon"”.
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Collisional Reactivation of Rift Margin Fracture Zones, Taiwan and the Taconic Allochthon
… Stretching Lineation Orientation in the Taconic Allochthon, Vermont and New York</strong></p> <p><strong><em>Abstract —</em></strong> New and previously collected structural data were compiled to produce detailed maps of slaty cleavage (S<sub>2</sub>) and stretching lineation (L<sub>2</sub>) …
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Structure and rheology of the middle Allochthon at 68 ̊N, Scandinavian Caledonides
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.
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Pilot Study using Elemental Geochemistry as a Means of Discriminating Chert Stratigraphy in the Roberts Mountains Allochthon, Nevada
Biogenic chert beds in the Roberts Mountain Allochthon (RMA) are analyzed for major and trace element geochemistry with the goal of developing a geochemical means to differentiate units. This detailed chemical profile will allow for the identification of unknown cherts through the use of chemical …
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The tectonic evolution of the Altavista area, Southwest Virginia Piedmont
… in the proposed westward thrusted Smith River Allochthon of the Southwest Virginia Piedmont. It also lies at the south end of an area of continuous mapping in the central Virginia Piedmont. The stratigraphy of the Smith River Allochthon has not been related to any other in the Southern …
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Crustal structures and the Eastern extent of the Lower Paleozoic Shelf Strata within the Central Appalachians: a seismic reflection interpretation
… along the PR3 profile. The Blue Ridge-Piedmont allochthon was transported in a northwest direction along the Blue Ridge thrust, which ramped upward beneath the Piedmont province approximately 12 km east of the surface exposure of the Mountain Run Fault. Along line PR3, the Blue Ridge thrust …
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Determination of fractured aquifer characteristics from evaluation of pump tests of wells in the crystalline rocks of the Blue Ridge allocthon
… circulation of ground water in the Blue Ridge allochthon may be more likely than previously thought.
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Style of volcanism and extensional tectonics in the eastern Basin and Range Province: Northern Mohave County, Arizona
… the easternmost boundary of the extensional allochthon in the Basin and Range Province and the eastern limit of exposure of mid-Tertiary igneous rocks at the latitude of Lake Mead. The upper plate of this fault system is exposed only in the northern White Hills, Mohave County, Arizona. The …
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Sedimentological constraints on Middle Miocene extensional tectonism of the southern Las Vegas Range, southern Nevada
… normal faulting in the Sheep Range extensional allochthon 12 to 16 Ma. After 12 Ma, deposition in this basin was terminated by normal faulting followed by oroflexural rotation along the Las Vegas Valley shear zone; The unique Middle Miocene sequence is 335-m-thick and consists of interbedded …
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Geology of the western boundary of the Charlotte Belt at Brookneal, Virginia
… northern Virginia southward into the Smith River Allochthon as the Fork Mountain Schist. In Brookneal, the boundary between the eastern metavolcanic and western metasedimentary units is obscured by the intrusion of the 470 Ma Melrose Granite. The abrupt change in lithology and multiple fault …
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ΣΥΜΒΟΛΗ ΣΤΗ ΓΝΩΣΗ ΤΗΣ ΓΕΩΔΥΝΑΜΙΚΗΣ ΕΞΕΛΙΞΗΣ ΚΑΤΑ ΤΟ ΠΕΡΜΟΤΡΙΑΔΙΚΟ ΣΤΟ ΧΩΡΟ ΤΗΣ ΑΝΑΤΟΛΙΚΗΣ ΕΛΛΑΔΑΣ
… WHICH REMAIN FOR A LONG PERIOD EMERGED (CHIOS ALLOCHTHON FROM M. PERMIAN TO U. TRIASSIC). THE EXISTENCE OF ALL THESE FACIES TOGETHER WITH THE PRESENCE OF ? EARLY-MIDDLE TRIASSIC VOLCANICS (WHICH PARTLY SHOW CALC- ALKALINE CHARACTERISTICS INDICATING VOLCANIC ARC DUE TO SUBDUCTION PHENOMENA) AND …
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The reprocessing and extended interpretation of seismic reflection data recorded over the Hayesville-Fries thrust sheet in southwestern North Carolina
… Chunky Gal Mountain faults within the Blue Ridge allochthon, 2) thrust ramping initiated by basement faulting that extends only a short distance into the overlying sedimentary strata, 3) a more highly faulted Grenville basement surface and, 4) almost intact Paleozoic shelf strata (?) being carried …
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Bionomie und Verbreitung der autochthonen Fiebermücke Anopheles plumbeus (Culicidae) und ihrer Vektorkompetenz für Plasmodium falciparum, Erreger der Malaria tropica
… wurden in Deutschland jährlich bis ca. 1000 allochthon erworbene Malariafälle registriert, von denen etwa 70 % durch Plasmodium falciparum hervorgerufen wurden. Basierend auf der sich ausdehnenden Verbreitung von Anopheles plumbeus wurde ihre Bionomie sowie ihre Vektorkompetenz für Plasmodium …
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The integration of petrologic and isotopic data from the Boulder Conglomerate to determine the age of the Navan orebody, Ireland
… is the Lower Carboniferous sedimentary allochthon deposited in the second order half graben created by major listric normal faults in the Navan area. The base of the Boulder Conglomerate comprises erosive-based, highly immature rock avalanches which are interbedded with hemipelagic …
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Geochemistry of the Sykesville diamictite in central Maryland: an investigation of clast-matrix activity during metamorphism with tectonic implications
… these inclusions were derived directly from the allochthon responsible for generating the diamictite. The amphibolite and amphibole-bearing gneisses show textural and mineral chemical affinity with the Baltimore Mafic Complex. Rb-Sr mineral ages suggest the metamorphism in the diamictite matrix …
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A study of the structure of the Belgian crust by Moho determination and local seismic tomography
… the Roer Valley Graben (RVG) and the Ardennes Allochthon (AA) to 28 km underneath the Eifel Volcanic Province (EVP). These results are comparable to the results of other studies, like seismic reflection profiles and receiver function analysis. The degree of precision obtained underneath the …
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From the Appalachians to the Alps: Constraints on the Timing, Duration, and Conditions of Metamorphism at Convergent Margins
… poly-metamorphic migmatites from the Smith River Allochthon (SRA) in the central Appalachians. A combination of petrography, thermodynamic modeling, and geochemistry is used to document and quantify the metamorphic evolution of the SRA and determine the petrologic processes that control …
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Livadi Mafic-Ultramafic Complex and its metamorphic basement, N.E. Greece
… by the Pelagonian lithologies of the Pieria allochthon along the E-W Mavroneri thrust. The orientation of linear structures, thrust surfaces, asymmetrical folds and imbricate slices associated with this movement are consistent with emplacement towards the south. Petrological and mineralogical …
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Qualitative and quantitative analyses of Lake Baikal's surface-waters using ocean colour satellite data (SeaWiFS)
… information describing autochthonous and allochthonous material in Lake Baikal could be provided by satellite data.Lake Baikal, with its bio-optical complexity and its different areas of Case 1 and Case 2 waters, is a very interesting case study for Ocean Colour analyses. Proposals for …