1 edition of Geophysical maps and geological sections of the Labrador Sea. compiled by S.P. Srivastava found in the catalog.
Geophysical maps and geological sections of the Labrador Sea. compiled by S.P. Srivastava
|The Physical Object|
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Quantitative X-ray diffraction (qXRD) mineralogy of bedrock, ice-rafted, and fluvial clasts, seafloor samples . Understanding the geological manifestations of rifting and continental breakup is crucial to further our understanding of the behavior of the crust and lithosphere under extension [1,2,3] as well as reducing the exploration risk at rifted continental margins [4,5,6].The coastal exposures adjacent to modern, offshore passive margins often preserve evidence for rifting- and breakup-related.
Assembly and breakup of the core of Paleoproterozoic– Mesoproterozoic supercontinent Nuna David A.D. Evans* and Ross N. Mitchell Department of Geology & Geophysics, Yale University, Whitney Avenue, New Haven, Connecticut , USA ABSTRACT Idealized conceptual models of supercontinent cyclicity must be tested against the geologic record using pre-Pangean reconstructions. The Labrador Sea is a small (∼ km wide) ocean basin separating southwest Greenland from Labrador, Canada. It opened following a series of rifting events that began as early as the Late Triassic or Jurassic, culminating in a brief period of seafloor spreading commencing by polarity chron 27 (C27; Danian) and ending by C13 (Eocene-Oligocene boundary).
Khatiwala, S., P. Schlosser and M. Visbeck. Rates and mechanisms of water mass transformation in the Labrador Sea as inferred from tracer observations. Journal of Physical Oceanography 32(2) DOI: /()RAMOWM>CO;2. scientific program - Joint Assembly.
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Geophysical maps and geological sections of the Labrador Sea. [S P Srivastava;] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Contacts Search for a Library compiled by S.P.
Srivastava. Reviews. User-contributed reviews. The map of depth to seismic ''basement" (Fig. 16) incorporates data from other seismic lines in the Labrador Sea (Srivastava, ) and from the pub lished "Basement Structure Map of Eastern Canada" (Wade et al., ).Cited by: Labrador Sea, Davis Strait, Baffin Bay: Geology and Geophysics — A Review.
Srivastava, R. Falconer, B. MacLean. Abstract. The structural developments of the Labrador Sea, Davis Strait and Baffin Bay as obtained from the combined analysis of geological and geophysical measurements are reviewed.
Compilation of magnetic and gravity. Gravity anomaly map of the Labrador Sea showing the Bouguer anomaly on land and free air anomaly at sea. The gravity data are from the Geological Survey of Canada digital database [Oakey et al., ]. The seismic lines discussed in this paper are shown (see also Figure 1).
The thick lines (profiles 1 and 2) are the two gravity profiles Cited by: Gradstein, F.M. and Srivastava, S.P., Aspects of Cenozoic stratigraphy and paleoceanography of the Labrador Sea and Baffin Bay.
Proc. Symposium Cenozoic in Geophysical Maps and Geological Sections of the Labrador Sea, Srivastava, S. (ed.). Geological Survey of Canada, Paper Continental break-up and seafloor spreading in the Labrador Sea is proposed to have begun during magnetochron 33 ( Ma, early Campanian), causing a counter-clockwise rotation of Greenland relative to North America (Srivastava ; Roest & Srivastava a,b; Srivastava & Roest).
This interpretation is based on the assumption. Geological map over Labrador Sea, Davis Strait, and Baffin Bay but showing only Cenozoic ocean crust after Chalmers () and Chalmers and Laursen () in the Labrador Sea. Geological and Tectonic Framework  A simplified bedrock geology map of the onshore and marine regions of West Greenland, Eastern Canada, Labrador Sea, Davis Strait and Baffin Bay is.
Srivastava, S.P., Evolution of the Labrador Sea and its bearing on the early evolution of the North Atlantic. Royal Astronomical Society Geophysical Journal 52 – CrossRef Google Scholar. Age of Tertiary volcanic rocks on the West Greenland continental margin: volcanic evolution and event correlation to other parts of the North Atlantic Igneous Province - Volume Issue 3 - LOTTE M.
LARSEN, ASGER K. PEDERSEN, CHRISTIAN TEGNER, ROBERT A. DUNCAN, NIELS HALD, JØRGEN G. LARSEN. 1 Introduction.
The Labrador Sea separates Labrador from Southeast Greenland. Initial rifting began in the Cretaceous [Watt, ; Srivastava, ].The north of the Labrador Sea is bounded by volcanic margins [Keen et al., ], with the presence of seaward dipping reflectors [Chalmers and Laursen, ], as is the case farther to the north at the Davis Strait and southern Baffin Bay.
1 Introduction. The crustal structure of southern Davis Strait and northern Labrador Sea was determined along two refraction/wide-angle reflection (R/WAR) seismic lines during the Nunavut to Greenland Geophysical Transect (NUGGET) experiment in ().Results from Line 1 are published in Funck et paper will analyse Line 2, which is km long and runs from southern Davis Strait into.
Geologic map of the southern Baffin Bay, the Davis Strait region and the northernmost Lab- sections are displayed with a band-pass filter from 8 to. Labrador Sea [Roest and Srivastava. Towards the west in the northern part of the Labrador Sea and in Davis Strait, thick Paleocene volcanic successions extruded during initial sea floor spreading cover the Cretaceous basins.
Oceanic or transitional crust is found in the central part of the Labrador Sea. The geology of the sedimentary basins within the Labrador Sea can be segmented into three phases: rift, drift, and postdrift. This tripartite megasequence division of Balkwill et al. () has been retained herein and provides a logical separation between the rift, drift, and postdrift sediments.
The Canadian Arctic Rift System is a major North American geological structure extending from the Labrador Sea in the southeast through Davis Strait, Baffin Bay and the Arctic Archipelago in the northwest. It consists of a series of interconnected rifts that formed during the Paleozoic, Mesozoic and Cenozoic eras.
Extensional stresses along the entire length of the rift system have resulted in. We present reconstructions of the northern hemisphere, north of 55°N, with respect to a fixed North America for each 20 million years from Ma to Present.
At Ma, most of the northern. This book summarizes our present understanding of the formation of passive continental margins and their oceancontinent transitions.
It outlines the geological, geophysical and petrological observations that characterize extensional systems, and how such observations can guide and constrain dynamic and kinematic models of continental lithosphere extension, break-up and the inception of. Srivastava, S.P. Geology of the Labrador Shelf, Baffin Bay and Davis Strait.
In: Keen, M.J. & Williams, G.L. (eds): Geology of the continental margin of eastern Canada. The geology of North America I-1, – Boulder, Colorado: Geological Society of America (also Geology of Canada 2, Geological Survey of Canada).
Advancement of the geological knowledge of the Arctic calls for international cooperation. Examples of this are the production of comprehensive maps of the Arctic, notably by the Geological Survey of Canada, which issued a million geological map (Okulitch et al. ) and then a million geological map (Harrison et al.
Roest, W. R. & Srivastava, S. P. Sea-floor spreading in the Labrador Sea—a new reconstruction. Geol – () Article ADS Google Scholar.In Deglacial history of the Champlain Sea basin and implications for urbanization.
Edited by H.A.J. Russell, G.R. Brooks, and D.I. Cummings. Joint annual GACMAC-SEG-SGA meeting, Ottawa, Ontario, May 25–27,Field Guide Book, Geological Survey of .The geologic evolution of southern Labrador included a Lower Paleozoic period of basin formation and limestone platform deposition, followed by a long period of peneplanization.
12 25 27 Several.