Results 41 to 50 of about 12,575 (215)

Supra-subduction melt modification of the fossil subcontinental lithospheric mantle: insights from ultra-depleted Khara-Nur ophiolitic peridotites (Eastern Sayan, central Asian orogenic belt)

Frontiers in Earth Science, 2023
Mantle peridotites from the Mesoproterozoic forearc-type ophiolites in the Eastern Sayan range (Eastern Siberia) provide insights into the nature and formation processes of the supra-subduction mantle.
Marina A. Gornova, Vasiliy A. Belyaev, Anas A. Karimov, Anas A. Karimov, Sergei Yu. Skuzovatov, Nikolay S. Karmanov, Alexander Ya. Medvedev, Nikolay V. Bryanskiy, Nikolay V. Bryanskiy   +8 more
doaj   +1 more source

Partitioning of chromium between garnet and clinopyroxene: first-principle modelling versus metamorphic assemblages [PDF]

European Journal of Mineralogy, 2020
Understanding the geochemical behaviour of trace and minor elements in mineral assemblages is of primary importance to study small- and large-scale geological processes.
S. Figowy, B. Dubacq, Y. Noël, P. d'Arco   +3 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

Clinopyroxene based glasses and glass-ceramics for functional applications [PDF]

, 2009
Doutoramento em Ciência e Engenharia de MateriaisAs piroxenas são um vasto grupo de silicatos minerais encontrados em muitas rochas ígneas e metamórficas.
Goel, Ashutosh
core  

(Table 1) Geochemistry of clinopyroxene in ODP Hole 140-504B

, 1995
(Table 1) Geochemistry of clinopyroxene in ODP Hole 140 ...
Henry J B Dick (6887306), Johnson, Kevin T M, Kevin T M Johnson (6973082), Dick, Henry J B   +3 more
core   +1 more source

Magmatic characteristics and crystallization condition of the Gasht- Masuleh gabbros (North of Iran) based on clinopyroxene and orthopyroxene composition [PDF]

پترولوژی, 2019
The Alborz Range, as a part of the Alpine-Himalayan orogeny, formed during the Cimmerian orogeny due to northward movements of the Central Iran micro-plate towards Eurasia.
Leila Rezaei, Mohssen Moazzen, Martin Timmerman   +2 more
doaj   +1 more source

Technologies of Transition: Pottery Production and Specialization in Early Rome and Its Neighbors. Neutron Activation Analysis of Regional Assemblages and a Mineralogical‐Petrographic Study of Impasto Chiaro‐Sabbioso

Archaeometry, EarlyView.
ABSTRACT The following paper investigates ceramic production and signs of specialization in Rome and the wider region during the early first millennium bce, through an archaeometric approach using Instrumental Neutron Activation Analysis (NAA), and complementary techniques.
Mattia D'Acri, Maria Verde, Alberto De Bonis, Vincenzo Morra, Brandi L. MacDonald   +4 more
wiley   +1 more source

Composition of the Tarim mantle plume: Constraints from clinopyroxene antecrysts in the early Permian Xiaohaizi dykes, NW China

, 2015
Numerous alkaline basaltic dykes crosscut the Early Permian Xiaohaizi wehrlite in drill-cores and syenite intrusion in the Tarim large igneous province, NW China.
Feng, Yue-Xing, Xu, Yi-Gang, Zhao, Jian-Xin, Wei, Xun, Luo, Zhen-Yu   +4 more
core   +1 more source

The Making of Forum Ware: A High‐Resolution Archaeometric Study of Early Medieval Glazed Pottery From the Templum Pacis (Imperial Forum, Rome)

Archaeometry, EarlyView.
ABSTRACT The object of this study consists of an archaeometric investigation of Early medieval Forum Ware glazed ceramics found in the central archaeological area of Rome, a significant chronological and economic marker for 8th–11th centuries. Instrumental analysis included digital microscopy, ESEM‐EDS imaging, EDS spectral analysis, EMPA quantitative ...
Martina Bernardi, Simona Boccuti, Emiliano Di Luzio   +2 more
wiley   +1 more source

Mineral associations in the rocks and metamorphism conditions of the Kandalaksha gabbro-anorthosite massif (Kola Peninsula)

Литосфера, 2016
The composition of mineral associations was studied in the main varieties of the rocks within the metamorphosed Kandalaksha gabbro-anorthosite massif in the southern part of the Kola Peninsula.
V. V. Chashchin, E. N. Steshenko, Ye. E. Savchenko, Ya. A. Pakhomovsky, A. V. Bazai   +4 more
doaj   +2 more sources