Results 31 to 40 of about 141 (134)
Geochimica Brasiliensis, 2018 Trends in a concentration of selected trace elements in residual soils on four known diamondiferous kimberlite pipes (3, 4, 8 and 9) occurring at Lattavaram within the Wajrakarur Kimberlite Field (WKF) is attempted for the first time.
Rameshchandra Phani Pothuri
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A Lithospheric Drip Triggered Green and Colorado River Integration
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.Abstract The integration of the Green and Colorado Rivers shifted the continental drainage divide of North America, marking a key event in the hydrological and biogeographical evolution of the continent. Sedimentological and stratigraphic evidence shows that for integration to occur, the Green River likely cut through the Uinta Mountains between 8 and ...
Adam G. G. Smith +4 more
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Raising the Roof of the World: Intra‐Crustal Asian Mantle Supports the Himalayan‐Tibetan Orogen
Tectonics, Volume 44, Issue 9, September 2025.Abstract The Himalayan‐Tibetan orogen formed via the ongoing collision of India and Asia. Its colossal elevations stem from buoyant crustal roots that doubled in thickness during continental collision, widely believed to result from Indian crust under‐thrusting its Asian counterpart and Asian crustal thickening. However, a single crustal layer of up to
P. Sternai +11 more
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Enhancement of lamproite magnetic signatures
ASEG Extended Abstracts, 2009 Lamproites are peralkaline, typically ultrapotassic (6 to 8% K2O) and magnesia-rich lamprophyric rocks of volcanic or hypabyssal origin and are now considered to crystallize from a distinct type of magma. Most lamproites occur in irregular, asymmetric craters that are generally rather shallow, usually less than 300 metres in depth, often in the shape ...
D.R. Cowan, G.R.J. Cooper
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Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract Mantle xenoliths recovered from the modern backarc region of the northern Altiplano Plateau record metasomatism by slab‐derived silicic melts, and a suite of Quaternary volcanics suggest that melting of accreted crustal material has persisted since shallow subduction in the Oligocene.
C. D. Hiett +2 more
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Stratigraphic Revision of the Selendi, Güre, and Uşak Neogene Basins, Western Anatolia
Acta Geologica Sinica - English Edition, Volume 99, Issue 2, Page 332-351, April 2025.Abstract In a re‐examination of the Neogene stratigraphy of the Uşak, Güre, and Selendi basins of western Anatolia, western Turkey, the stratigraphic position of the previously defined İnay Group is revised, which was previously considered to be of the Middle Miocene age.
Fikret GÖKTAŞ +2 more
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Geochemistry, Geophysics, Geosystems, Volume 26, Issue 2, February 2025.Abstract Melting for the generation of intracontinental diffuse basaltic fields is generally ascribed to the effects from lithospheric dynamic processes, but how the asthenospheric dynamics influence the overlying lithosphere remains poorly known. Here, this is explored via a combined geochemical and numerical modeling study on the long‐lived Middle ...
Hong‐Kun Dai +2 more
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Geophysical Research Letters, Volume 52, Issue 2, 28 January 2025.Abstract The temperature of the convecting mantle and thickness of the lithosphere control many of Earth's processes. However, there is disagreement regarding the evolution of these quantities through time. We use a global data set of mantle xenoliths and xenocrysts to construct paleogeotherms at different eruption ages (16–1,311 Ma) and estimate the ...
Z. J. Sudholz, A. Copley
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Rare‐Earth Mineralization in Dong Pao Deposit, Laichau Province, Vietnam
Resource Geology, Volume 75, Issue 1, January/December 2025.ABSTRACT The Dong Pao deposit in northern Vietnam is associated with the Paleogene Dong Pao Syenite Complex, which intruded into the limestone of the Triassic age. Although the Dong Pao deposit has been attracting exploration for decades as a promising rare earth deposit, it has not been well studied in terms of mineralization style and formation ...
Tinh Thanh Bui +5 more
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Gravity field and geothermal structure of the Corsica‐Sardinia Block
Terra Nova, Volume 36, Issue 6, Page 506-515, December 2024.Abstract This paper presents a finite‐differences 3D numerical model that simulates the gravity and thermal structure of the Corsica‐Sardinia Block (CSB), an apparently stable lithospheric domain characterized by cryptic tectonic activity. In the experiments, we change the density and heat production rate of the model crust within a range of ...
F. Cocco, L. Casini, A. Funedda
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