Results 41 to 50 of about 8,675 (209)

Geochemical and Characteristics of Mafic and Ultramafic Rocks of the Suprasubduction Zone Mawat Ophiolite, NE Iraq

Iraqi Geological Journal, 2022
New geochemical data were presented for the mafic (basalts and gabbros) and ultramafic (dunites, serpentinites and pyroxenites) rocks from the Mawat ophiolite exposed in the Zagros suture zone in northeastern Iraq.
Heider Al Humadi, Markku Väisänen , Sabah Ismail   +2 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

(Table 2) Contents of chloride components in serpentinized ultramafic rocks from ODP Site 107-651A

, 2006
(Table 2) Contents of chloride components in serpentinized ultramafic rocks from ODP Site 107 ...
Barnes, Jaime D, Sharp, Zachary D, Zachary D Sharp (7909631), Jaime D Barnes (7909628)   +3 more
core   +1 more source

The relationship between serpentinization and geotechnical properties of ophiolites (Case study: Paleotethys ophiolites of the Southwest of Mashhad)

Journal of Economic Geology, 2020
Introduction In the southern margin of the Mashhad plain in Northeastern Iran, there are strips with tens of kilometers length consisting of metamorphic rocks and ophiolite complexes with the NE-SW trend.
Salameh Afshar, Mohammad Ghafoori, Naser Hafezi Moghaddas , Gholam Reza Lashkaripour   +3 more
doaj   +1 more source

Scientists’ warning on the global destruction of rock outcrop ecosystems

Conservation Biology, EarlyView.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula, Lucas N. Perillo, Gianluigi Ottaviani, Flávio F. Carmo, Mandar N. Datar, Katherine C. Enebeli‐Ekwutoziam, Bruno Fogliani, Stephen D. Hopper, Aboli Kulkarni, Hans Lambers, Rafael F. Magalhães, Frederico S. Neves, Jean‐François Ponge, Stefan Porembski, Bruno H. P. Rosado, Fernando M. G. Santos, Elycée Tindano, Bram Vanschoenwinkel, Aparna Watve, Fernando A. O. Silveira   +19 more
wiley   +1 more source

(Table 2) Contents of chloride components in serpentinized ultramafic rocks from DSDP Site 558

, 2006
(Table 2) Contents of chloride components in serpentinized ultramafic rocks from DSDP Site ...
Barnes, Jaime D, Sharp, Zachary D, Zachary D Sharp (7909631), Jaime D Barnes (7909628)   +3 more
core   +1 more source

Petrographic Analysis of Mafic and Ultramafic Rocks in Northern Thailand: Implications for CO₂ Mineralization and Enhanced Rock Weathering Approach

Geosciences
Mafic and ultramafic rocks have become a promising approach for atmospheric carbon dioxide (CO2) reduction, as they are major sources of CO2-reactive minerals, i.e., olivine, pyroxene, plagioclase, and serpentine.
Tadsuda Taksavasu
doaj   +1 more source

ISOTOPE COMPOSITION OF CARBON AND OXYGEN IN CALCITES OF ALKALINE ULTRAMAPHIC DYKES WITHIN THE URIK-IYA GRABEN

Геодинамика и тектонофизика, 2022
The isotope composition of carbon and oxygen was studied in calcite of dykes and veins of ultramafic lamprophyres, kimberlite, alkaline mica picrites from the Yarma above-intrusion zone, and pyroxene-free picrites intruding the rocks of the ...
Yu. V. Danilova, V. B. Savelyeva, E. P. Bazarova, B. S. Danilov, V. A. Ponomarchuk   +4 more
doaj   +1 more source

The vegetation on ultramafic rocks in New Caledonia

Botany Letters, 2023
International ...
Pillon, Yohan, Isnard, Sandrine, Mattio, Lydiane   +2 more
openaire   +3 more sources

Variable Sr Diffusion and Implications for Rb–Sr Biotite Geochronology

Journal of Metamorphic Geology, EarlyView.
ABSTRACT The rubidium–strontium (Rb–Sr) system has a long pedigree as a geochronological tool that relies on the application of an isochron approach. In particular, biotite contains strongly radiogenic Rb–Sr isotopes, and thus can yield meaningful crystallisation or cooling ages via this approach. However, the response of the Rb–Sr system in biotite to
Riley Rohrer, Christopher L. Kirkland, Hugo Olierook, Tim Johnson, Katy Evans   +4 more
wiley   +1 more source