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Showing 1 to 20 of 79 for “"Massif"”.
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Metamorphism of the Troodos Massif, Cyprus
… supports the contention that the Troodos massif, Cyprus is a fragment of Mesozoic sea-floor created at a constructive plate margin. Here, the metamorphism and geochemistry of the dyke/pillow lava sequence at the top of the igreous succession are shown to be compatible with this proposal. …
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The vegetational and archaeological history of the Ingleborough Massif, North Yorkshire
… and archaeological history of the Ingleborough Massif was investigated using pollen and macrofossil analysis of peat deposits in conjunction with radiocarbon dating. A transect was taken across the massif, running northwest to south-east, and peat deposits were sampled at intervals, as close to …
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The Geology of the Arakapas Fault Belt Area Troodos Massif, Cyprus
… supports the contention that the Troodos massif, Cyprus is a fragment of Mesozoic sea-floor created at a constructive plate margin. Here the geology of an east-west striking fault zone in the southern part of the massif, the Arakapas Fault Belt (APB), is investigated and evidence is …
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Petrology and geochemistry of pyroxenites in the Lanzo ultramafic massif, Northwestern Italy
… for pyroxenites in the Lanzo ultramafic massif in order to place chemical and petrological constraints both locally on the geologic history of the massif and more generally on the role of magmatic rifting and the rift-to-drift transition in ultraslow-spreading ridge environments. Two …
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The lattice preferred orientation of olivine in Beni Bousera Ultramafic Massif, Morocco
… and evolution. The Beni Bousera Ultramafic Massif, northern Morocco, shows petrologic evidence that melt was an important part of its history. The massif, dominantly composed of spinel lherzolite with harzburgitic sections, has 10 to 100 meter scale zones which contain abundant pyroxenite …
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Etude géologique du Sous-groupe de Mpioka dans le massif de Nionga. (Bas-congo, RDC)
The massif of Nionga is located in the province of Bas-Congo in the Democratic Republic of the Congo. The subgroup of Mpioka is lithostratigraphiquement to Group West-Congolien (566 Ma). And Zadinien, Mayumbien and West-Congolien together form what is called the supergroup West Congo (L. Tack et …
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Kinematic Evolution, Metamorphism and Exhumation of the Greater Himalayan Sequence, Mount Everest Massif, Tibet/Nepal
… of the region is the N-S trending Ama Drime Massif (ADM). By combining new structural interpretation with existing remote sensing data this investigation proposes that the ADM is being exhumed during extension that is coupled with denudation in the trans-Himalayan Arun River gorge. Together …
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Fluid evolution in the nepheline syenites of the Ditrău Alkaline Massif, Transylvania, Romania
The Ditrău Alkaline Massif (Romania) is located in the Eastern Carpathians, as an intrusion in the Bukovina nappe system of the Mesozoic crystalline zone. Nepheline syenites are the most abundant rocks occurring in the central and eastern part of the Massif, and represent the youngest intrusion of …
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Understanding stakeholder perspectives : the case of Mount Arrowsmith Massif Regional Park & the Mount Arrowsmith Biosphere Reserve
… potential benefits of the Mount Arrowsmith Massif Regional Park and the importance of the Mount Arrowsmith Biosphere Reserve Operating Framework. This study has contributed to the larger Protected Areas and Poverty Reduction (PAPR) research initiative as it discusses the flow of costs and …
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The contact relationship between an large orogenic ultramafic massif and its surrounding units: Beni Bousera northern Morocco
Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2009.
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The geology of the Tantalite Valley maficultramafic complex and the Kumkum metamorphicigneous massif near Warmbad, South West Africa, Namibia
An area south of Warmbad, South West Africa (Namibia) consisting of medium-to high-grade rocks of the Namaqua Metamorphic Complex has been mapped. It is established that this original dominantly sedimentary region has undergone polyphase metamorphism and deformation and has been intruded by a …
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Structural Re-orientation of Magmatic Fabrics and Layering in the Lower Oceanic Crust: Hole GT1, Wadi Tayin Massif, Samail Ophiolite
… sampled beneath Hole GT1 in the Wadi Tayin massif of the Oman ophiolite by the Oman Drilling Project to better constrain models of crustal accretion. The gabbro glacier model proposes that crystallized basalt flows down and away from the crystallization site to form the lower crust while the …
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Geochemical properties of the Beni Bousera (N. Morocco) peridotites : a field and laboratory approach to understanding melt infiltration and extraction in an orogenic peridotite massif
The Beni Bousera ultramafic massif is a tectonically emplaced body of upper mantle material that is exposed over 72 km2 in the Betic-Rif-Tell orogenic belt of northern Morocco. The massif is composed primarily of spinel lherzolite, although meter-scale domains of harzburgite, dunite, and veins and …
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Structural and metamorphic evolution of the Lycian Nappes and the Menderes Massif (southwest Turkey) : geodynamic implications and correlations with the Aegean domain
West Anatolien, welches die östliche laterale Verlängerung der ägäischen Domäne darstellt, besteht aus mehreren tektono-metamorphen Einheiten, die Hochdruck/Niedrigtemperatur (HP/LT) Gesteine aufweisen. Einige dieser metamorphen Gesteine Zeugen der panafrikanischen oder der kimmerischen Orogenese …
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Oxygen and radiogenic isotope constraints on the generation of coexisting silica-undersaturated and oversaturated felsic magmas of the Ditrau Alkaline Massif (Romania)
The Ditrău Alkaline Massif (DAM) is a Mesozoic igneous complex (~200-230 Ma) was generated in a continental rift environment. This study has investigated the relationship between the silica-undersaturated and oversaturated Ditrău rocks based on oxygen, Sr, Nd and Pb isotope data. Different models …
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Eo-Variscan Orogenesis in the Guilleries Massif, Catalan Coastal Ranges, Northeastern Spain Recorded by U-Th-Pb ages of Monazite Inclusions in Metamorphic Garnet
… in high grade pelitic schists of the Guilleries Massif of the Catalan Coastal Ranges of northeastern Spain which preserve multiple rounds of deformation and metamorphism. The massif records a classic Variscan low-pressure and high-temperature metamorphic field gradient and represents part of the …
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Tectonic evolution of the Western Limassol Forest Complex, Cyprus
… ophioliteterrain in the south of the Troodos Massif. Detailed studies have revealed magmatic and structural histories that differ markedly from the Penrose-type ophiolite of the Troodos Massif to the north. In the WLFC, a tectonised harzburgite of upper mantle origin has been intruded by …
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