Results 51 to 60 of about 17,177 (230)

A Variscan Agglomerate [PDF]

Nature, 1962
Some Aspects of the Variscan Fold Belt Edited by Dr. Kenneth Coe. (Ten Lectures delivered to the Ninth Inter-University Geological Congress.) Pp. vii + 163. (Manchester: The University Press, 1962.) 30s. net.
openaire   +1 more source

The Geology as an indispensable tool for optimizing the exploration of dimension Stones [PDF]

, 2012
Like any Geological Resource, the Dimension Stones can only be exploited where they occur. How they occur is a reflection of geological history that presided over its formation.
Lopes, Luís
core  

The thermal history of the Western Irish onshore [PDF]

, 2014
We present here a low-temperature thermochronological study that combines the apatite fission-track and (U + Th)/He dating methods with a pseudo-vertical sampling approach to generate continuous and well-constrained temperature–time histories from the ...
Chew, David, Cogne, Nathan, Stuart, Finlay M.   +2 more
core   +2 more sources

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

Geology of the Asinara Island (Sardinia, Italy)

Journal of Maps
Understanding how the lithosphere accommodates deformation along oblique convergent plate boundaries is an important issue for unveiling orogenic belt exhumation.
R. Carosi, C. Montomoli, D. Iacopini, A. Petroccia, M. Simonetti, G. Oggiano   +5 more
doaj   +1 more source

Paleozoic evolution of pre-Variscan terranes: From Gondwana to the Variscan collision [PDF]

, 2002
The well-known Variscan basement areas of Europe contain relic terranes with a pre-Variscan evolution testifying to their peri-Gondwanan origin (e.g., relics of Neoproterozoic volcanic arcs, and subsequent stages of accretionary wedges, backarc rifting, and spreading).
Stampfli, Gérard M., Raumer, Jürgen F. von, Borel, Gilles D.   +2 more
openaire   +1 more source

PRE-DEVONIAN, BRABANTIAN DEFORMATION WITHIN THE SOUTHERN CONDROZ INLIER (RUISSEAU DES CHEVREUILS, DAVE, BELGIUM) [PDF]

, 2007
A
Debacker, Timothy, Vanmeirhaeghe, Jan
core   +1 more source

New Permo-Carboniferous geochemical data from central Thailand: implication for a volcanic arc model [PDF]

, 1991
Current ideas and models of geotectonic reconstructions of Southeast Asia are reviewed and new data on Late Carboniferous through Middle Permian tuffites and sills from central Thailand are presented in the light of the problems of Southeast Asian ...
Altermann, Altermann, Altermann, Amstutz, Barr, Barr, Baum, Beccaluva, Buffetaut, Bunopas, Bunopas, Bunopas, Burret, Burton, Cobbing, Cooper, Damm, De Witt, Dickins, ESCAP, Fontaine, Garson, Gatinsky, Grant, Hahn, Haile, Helmcke, Helmcke, Helmcke, Ingavat-Helmcke, Macdonald, Macdonald, Macdonald, Macdonald, McElhinny, Metcalfe, Metcalfe, Metcalfe, Mitchell, Miyashiro, Miyashiro, Rao, Schermerhorn, Sengör, Shervais, Stauffer, Stauffer, Stauffer, Stöcklin, Thanasuthipitak, Tozer, Waterhouse, Wielchowsky, Winchester, Winkel, Wladyslaw Altermann, Wood, Zanettin   +57 more
core   +1 more source

Bed‐scale quantitative discrimination of hyperpycnites from intrabasinal turbidites—Results from a channelised slope system in the Upper Carboniferous Westward Ho! Formation, United Kingdom

Sedimentology, EarlyView.
ABSTRACT Features considered indicative of hyperpycnites and intrabasinal turbidites overlap. Outcrop study presented here suggests that the Westward Ho! Formation forms an 800 m high deepwater‐slope system dominated by hyperpycnites. Taking this unit, and other successions where hyperpycnites have been described, as having been deposited solely from ...
Tony Reynolds
wiley   +1 more source

Molybdenite Re-Os dating of Mo-Th-Nb-REE rich marbles: pre-Variscan processes in Moldanubian Variegated Group (Czech Republic)

Geologica Carpathica, 2015
In an effort to contribute to the discussion concerning the age of rocks of the Moldanubian Variegated Group, we have undertaken Re-Os dating of molybdenite of banded carbonatite-like marbles (CLM) from the graphite mine Václav at Bližná (Southern ...
Drábek Milan, Stein Holly
doaj   +1 more source