Results 61 to 70 of about 2,685 (149)
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Low‐velocity layers (LVLs) above the 410‐km discontinuity are commonly attributed to partial melt generated by dehydration melting when hydrous mantle transition‐zone material rises into the upper mantle, where water solubility in nominally anhydrous minerals decreases.
Takashi Yoshino, Longjian Xie
wiley +1 more source
Global Cooling Driving the Increase in Erosion Rates Across the Himalaya Since the Quaternary
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Late Cenozoic global cooling is well documented, yet its impact on erosion rates in active mountain belts, particularly after the onset of Quaternary glaciation, remain contentious. This ambiguity partially stems from the potential methodological biases in erosion rate quantification, particularly in the Himalaya, where recent studies report ...
Dongxu Cai +9 more
wiley +1 more source
Tectonics, Volume 45, Issue 7, July 2026.Abstract The accretion of allochthonous provinces, derived from oceanic plates, has traditionally been considered an important contributor to continental growth. However, increasing evidence shows that some oceanic terranes (e.g., island arcs) are not “exotic,” as suggested by the presence of continental‐derived sedimentary provenance.
Igor V. Gomes +4 more
wiley +1 more source
Cerium isotope systematics of oceanic carbonatites
, 2013 International audienceOceanic carbonatites have been reported only at the Cape Verde and Canary archipelagos, North Atlantic Ocean. Geochemical studies based on stable, radiogenic and noble gas isotopes have led to the general consensus that their ...
Hammouda, Tahar +3 more
core +4 more sources
Petrogenesis of Carbonatites in the Alnö Complex, Central Sweden
, 2013 The Alnö Complex is a Late Precambrian alkaline and carbonatite intrusion (c. 30km2) into Early Proterozoic country rock that extends from the north east, to the north western shoulder of Alnö Island.
Roopnarain, Sherissa
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Geosciences, 2018 This article is devoted to the geology of titanium-rich varieties of the Petyayan-Vara rare-earth dolomitic carbonatites in Vuoriyarvi, Northwest Russia. Analogues of these varieties are present in many carbonatite complexes. The aim of this study was to
Evgeniy Kozlov +3 more
doaj +1 more source
Carbonatites and associated nephelinites from Sao Vicente, Cape Verde Islands [PDF]
, 2012 The island of Sao Vicente has the most abundant carbonatite outcrops in the Cape Verde Islands. A field survey of the main outcrops has shown that they consist of extrusive carbonatites, carbonatite dykes and small apophyses of intrusive carbonatite ...
Sagredo Ruiz, Juana +2 more
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NEW DATA ON PYROCHLORE FROM THE TATARKA DEPOSIT (YENISEI RIDGE, RUSSIA) [PDF]
Минералогия, 2017 Large pyrochlore crystals (up to 6 cm) from ores of the Tatarka deposit are studied, as well as their compositional zoning and relations with associated minerals.
V.I. Popova +8 more
doaj
Carbon- and oxygen-isotope variations in Indian carbonatites
, 1996 Carbon- and oxygen-isotope data are presented for several Indian carbonatites. These carbonatites are classified, based on mineralogy and petrography, as: Ambadungar (holocrystalline sövite and alvikite, with porphyritic calcite carbonatite, brecciated ...
Taylor, Lawrence A. +1 more
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Carbonatites: NIL-silicate igneous rocks [PDF]
, 1967 This paper is a review of the more important facts, ideas, and discoveries in the study of carbonatites during the last decade. All evidence is shown to affirm the igneous nature of these carbonate rocks.Peer Reviewedhttp://deepblue.lib.umich.edu ...
Heinrich, E. William (Eberhardt William)
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