Results 71 to 80 of about 40,183 (305)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.Abstract The Andean margin of Central Chile (∼32°40′–34°30′S) records abundant Cenozoic arc magmatic activity with variable compositional characteristics. This is examined through the analysis of an extensive database of new and published whole‐rock geochemistry and Sr‐Nd isotopic compositions, in addition to zircon Hf and O isotopic compositions.
M. Muñoz‐Gómez +10 more
wiley +1 more source
Open GeosciencesThe Mélange in Lamphun Province, situated in the southern region of the Chiang Mai-Chiang Rai Suture Zone (CMCRSZ), remains inadequately explored. This study employs field investigations and petrographic analysis to delineate the characteristics of the ...
Phajuy Burapha +3 more
doaj +1 more source
Crystals, 2021 Ophiolite-hosted diamond from peridotites and podiform chromitites significantly differs from those of kimberlitic diamond and ultra-high pressure (UHP) metamorphic diamond in terms of occurrence, mineral inclusion, as well as carbon and nitrogen ...
Fei Liu +3 more
doaj +1 more source
Transfer of Strontium and Carbon From Subducting Sediment Into the Leading Edge of the Mantle Wedge
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.Abstract Carbon mobilization at subduction zones can be constrained by focusing on Sr as a proxy, as Sr readily substitutes for Ca—a major cation in the crystal structures of carbonates. Unmelted high/ultrahigh pressure (HP/UHP) pelitic metasediments exhumed from less than 100 km depth along the slab‐mantle interface show loss of Sr and retention of ...
Amol Dayanand Sawant +6 more
wiley +1 more source
Surface reactivity of amphibole asbestos. A comparison between crocidolite and tremolite [PDF]
, 2017 Among asbestos minerals, fibrous riebeckite (crocidolite) and tremolite share the amphibole structure but largely differ in terms of their iron content and oxidation state. In asbestos toxicology, iron-generated free radicals are largely held as one of
Andreozzi, Giovanni B. +4 more
core +3 more sources
Uranium Addition and Loss in Serpentinites: The Potential Role of Iron Oxides
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.Abstract Fluid‐mobile uranium serves as a tracer for water‐rock alteration in serpentinized mantle rocks, which constitute an important uranium reservoir. However, the mechanism for uranium addition, where uranium is hosted, and the stability of the uranium enriched material during subduction is not settled.
Emily H. G. Cooperdock +2 more
wiley +1 more source
Chromitite deposits of Ufaley ultramafic massif (South Urals)
GeoresursyData on the morphology, composition, textural and structural features of chromite deposits of the Ufaley ultramafic massif are presented. The mineralogical and compositional features of the host ultramafic rocks allow us to interpret them as depleted ...
D. E. Saveliev
doaj +1 more source
The Cogne magnetite deposit (Western Alps, Italy): a Jurassic seafloor ultramafic-hosted hydrothermal system? [PDF]
, 2017 The Cogne magnetite deposit (Western Alps, Italy) is the largest in a series of apatite and sulphide-free magnetite orebodies that are hosted in serpentinites belonging to western Alpine ophiolitic units.
Toffolo, Luca
core +1 more source
Tectonics, Volume 44, Issue 9, September 2025.Abstract The Hellenic forearc is one of the least understood forearc systems globally due to limited availability of high‐resolution imagery of its deep structure, especially landward of the Mediterranean Ridge. Here, we combine widely spaced high‐resolution multichannel seismic‐reflection profiles with seafloor morpho‐bathymetric analysis and ...
Vasiliki Mouslopoulou +7 more
wiley +1 more source
, 2010 The United Arab Emirates (UAE) is one of the world’s most rapidly urbanising countries. Despite the recent downturn in the economy, the region continues to undergo rapid development, particularly around Abu Dhabi and Dubai.
Ellison, Richard +3 more
core