Results 61 to 70 of about 9,903 (199)
Review of South African research on volcanic and related rocks and mantle-derived materials : 1999-2002 [PDF]
, 2003 This report reviews South African research relating to the scientific interests of the International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI) and which was published between 1999 and 2002.
Marsh, J S
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A crustal-upper-mantle model for the Colorado Plateau based on observations of crystalline rock fragments in the Moses Rock Dike [PDF]
, 1972 On the basis of the size, the abundance, and the petrographic character of xenoliths in the Moses Rock dike, a model for the vertical stratigraphy of crystalline rocks beneath the dike is proposed extending from near the surface to a depth of about 200 ...
McGetchin, Thomas R., Silver, Leon T.
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Development and Change, Volume 57, Issue 2, Page 315-338, March 2026.ABSTRACT Sierra Leone's land governance reform policies are often based on the neoliberal assumption that market growth, gender equality and women's empowerment are mutually compatible objectives. Contrary to this assumption, this article argues that while market‐oriented reforms can help to destabilize legal and cultural norms that are discriminatory ...
Mohamed Sesay, Simeon Koroma
wiley +1 more source
Cretaceous fossils from the Orapa Diamond Mine [PDF]
, 1997 Main articleThe Orapa kimberlite pipe, situated in north-central Botswana, is well-known for its rich reserves of diamonds. It is indeed one of the largest and richest diamond mines in the world.
Bamford, M. K. +6 more
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Lithospheric Delamination Below the North American Midcontinent Ceased Subsidence in Cratonic Basins
AGU Advances, Volume 7, Issue 1, February 2026.Abstract Cratonic lithospheres carry a long history of tectonic modifications that result in heterogeneous structures, as revealed by an increasing number of geophysical observations. The existence of cratonic basins indicates protracted periods of tectonic modification, causing subsidence within global continental interiors.
Xiaotao Yang +3 more
wiley +1 more source
MIKHAIL M. ODINTSOV’S EXHIBITION IN THE MUSEUM OF THE INSTITUTE OF THE EARTH’S CRUST
Геодинамика и тектонофизика, 2015 The Museum of the Institute of the Earth’s Crust opened an exhibition devoted to Mikhail M. Odintsov (1911–1980), the prominent Russian geologist and the corresponding member of the USSR Academy of Sciences, who headed the Institute of the Earth’s Crust ...
Larisa A. Ivanova
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Reconciling Seismic and Thermo‐Chemical Models of Cratonic Lithosphere
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.Abstract Most published global and regional shear‐wave (VS ${V}_{\mathrm{S}}$) velocity models of cratons include a VS ${V}_{\mathrm{S}}$ increase with depth below the Moho, with a maximum at 100–150 km depth. This feature has long been debated, as it appears to require either (implausible) temperature decreases with depth, or substantial, layered ...
Sefira Davison +5 more
wiley +1 more source
Research in volcanic geology, petrology and planetary science at MIT, 1969 to 1974 [PDF]
The behavior of volcanoes was studied by geologic mapping, petrologic investigations of lava and xenoliths, physical measurements, and theoretical modelling. Field observations were conducted in Alaska (Nunivak Island), Iceland, Hawaii (Mauna Kea), Italy
Mcgetchin, T. R.
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.Abstract Fluids released from subducting hydrated rocks influence volcanism, tectonics, and geochemical cycling, but the mechanisms of fluid escape in subduction zones remain poorly understood. We address this issue by investigating the Erro‐Tobbio meta‐serpentinites (ET‐MS), Italy, exhumed serpentinite rocks that preserve extensive dehydration vein ...
Austin Arias +5 more
wiley +1 more source
Технічна інженеріяThe article discusses the use of geographic information systems in the study of kimberlite deposits in order to establish diamondiferous content based on indicator minerals, in particular olivine.
N.V. Zuievska +3 more
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