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  • The reasons for the initiation of many landforms can in many instances be traced to various magmatic, thermal, tectonic, and sedimentological events, some of which took place in distant geological time. Many landforms are in reality multistage
  • On the basis of the petrologic characteristics and the lithostratigraphy of the Precambrian-Lower Palaeozoic metamorphites of the Ore Mountains the development of sedimentation areas and the chronological and regional course of tectonic, magmatic
  • The granitoides of the southern part of the GDR may be considered as crustal anatexites generated in connection with the posttectogenic tectono-magmatic activation together with a regional metamorphism and postmagmatic ore deposits. The supply
  • The Pan-African (800-500 Ma) Older Granite suite of Nigeria is dominated by calc-alkaline, I-type magmatism and is a product of subduction processes at the eastern margin of the West African craton. The Kanoma and Sabon Gida composite plutons of NW
  • The AA. report tectonic settings and geological features of Patagonia briefly and discuss some structural and geomorphological aspects that could be used to infer directions of magmatic flow of nearly horizontal lavas and to test stability of rock
  • –rock interactions. Chemical weathering is clearly, at least, partly controlled by the input of magmatic CO2, either under hydrothermal (hot) or surficial (cold) weathering regimes. This study shows that the contribution of magmatic CO2 to chemical
  • Crustal thinning ; Tilted blocks ; alkalic composition ; anorogenic magmatism ; asthenosphere ; continental crust ; deformation ; detachment faults ; fracturing ; igneous rocks ; lithosphere ; mantle ; morphology ; normal faults ; ocean opening
  • précis de l'évolution de la marge et du jeune océan. En neuf chapitres, les AA. font la synthèse des connaissances et des idées sur le sujet, en privilégiant l'approche géodynamique (l'analyse des mouvements et des forces en action, c'est-à-dire les
  • is older than those previously established on ophiolite sedimentary covers from this segment of the western Alps. This chronological relationship implies either a late seafloor spreading-related magmatic activity in places younger than adjacent initial
  • the magmatic plumbing system from the upper mantle to the crust of the Northeast Honshu arc.
  • . These ideas are supported by the magmatic development in this region. The ascertained processes of the structural development in this region. The ascertained processes of the structural development are well fitting into the Lower Permian picture of movements
  • seems to be controlled by magmatic influences as well as by the effect of temperature on groundwaters.
  • glacial erratics from neighbouring fields above all representative of the magmatic and metamorphic genetic groups of rock. It is with a view to describing the cognitive, educational and geotouristic role this new object is playing that the present article
  • to a distance of 1500 km from the studied sections, can be considered as the possible source of this layer. Nevertheless, tectono-magmatic evidence suggests that it may represent the witness of the activity of a calc-alkaline submarine volcanic arc located