4 天之前 · The orogeny was formed by plate-tectonic processes that included seafloor spreading, continental drift, and the collision of plates. Remnants of the original ocean floor are preserved as ophiolites in the Harz mountain range in Germany and …

2025年2月11日 · Geochronology is the scientific branch of geology that aims to determine the age of rocks, fossils, and sediments either through absolute (e.g., radiometric dating) or relative means (e.g., stratigraphic position, paleomagnetism, stable isotope ratios).

5 天之前 · Geology and Geophysics. Exploration Geophysics; Geodesy and Gravity; Geomagnetism and Paleomagnetism ... Precise dating of this structures reveals that the stress induced by Pyrenean orogeny was recorded in a variety of tectonic objects and throughout the western European intraplate domain.

2025年2月5日 · Results indicate that Nordfjord eclogites were originally mafic rocks derived from an oceanic crustal setting, later subducted and metamorphosed during the Caledonian orogeny.

2025年1月22日 · We systematically investigated the patterns of field relations, ages, chemistry, and Hf-Nd isotopes of the early Paleozoic basaltic-andesitic rocks in the Yunkai massif and those reported elsewhere in the orogen.

2025年1月26日 · North America - Prehistoric, Geology, Plate Tectonics: The interval between about 1.3 billion and 950 million years ago began with continental rifting and culminated in the Grenville orogeny along the southeastern margin of the continent.

2025年1月28日 · They are the rocks involved in the cyclic processes of erosion, sedimentation, burial, metamorphism, and mountain building (orogeny), events that are all related to major convective processes in Earth’s mantle.

2025年1月31日 · Post-collisional volcanism provides valuable insights into mantle dynamics, crustal processes, and mechanisms driving orogen uplift and collapse. This study presents geological, geochemical, and geochronological data for Ediacaran effusive and pyroclastic units from the Taghdout Volcanic Field (TVF) in the Siroua Window, Anti-Atlas Belt.

2025年2月4日 · Orogen-parallel mid-lower crustal ductile flow during the late Triassic Qinling orogeny: structural geology and geochronology

2025年2月10日 · Rocchi, S., Di Vincenzo, G., Ghezzo, C., Nardini, I. (2009) Granite-lamprophyre connection in the latest stages of the early Paleozoic Ross Orogeny (Victoria Land, Antarctica) Geological Society of America Bulletin, 121 (5) 801-819 doi:10.1130/b26342.1