Results 101 to 110 of about 222,262 (199)

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

Magmatic and Metamorphic Fluids in Pegmatite Development: Evidence from Borujerd Complex, Iran [PDF]

Journal of Sciences, Islamic Republic of Iran, 2005
The Borujerd complex of western Iran is composed of intrusions and their surrounding contact aureole, with, pegmatites and quartz veins. Pegmatites differ in mineralogy, origin and age, and two groups can be distinguished. The Older Pegmatites (about 120
doaj  

Neural Networks and Multivariate Analysis Based on Geochemical Data to Determine Stone Provenance From Ancient Calabrian Quarries (Southern Italy)

Archaeometry, EarlyView.
ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello, Stefano Columbu, Raffaella De Luca, Marco Lezzerini, Mirco Taranto, Fabrizio Antonelli   +5 more
wiley   +1 more source

Talc‐Tempered Pottery From Bala Hissar, Kabul: An Analytical Study

Archaeometry, EarlyView.
ABSTRACT Potsherds of cooking ware excavated at Bala Hissar archaeological site in Kabul were studied using X‐ray fluorescence (XRF), scanning electron microscope‐energy dispersive X‐ray spectrometry (SEM‐EDS), Raman spectroscopy, X‐ray powder diffraction (XRPD), thermogravimetric analysis (TGA) and optical microscopy.
Parviz Holakooei, Babak Rafiei‐Alavi, Hafizullah Hazim, Hasti Pezeshkanjalili, Lara Maritan   +4 more
wiley   +1 more source

First direct evidence of the O–H isotopic composition of slab-derived water in the subduction zone, revealed by fluid inclusions in high-pressure metamorphic rocks

Geoscience Letters
The O and H isotopic compositions of water provide clues to their origin and the water cycle in the deep Earth, and those of waters from hot springs can indicate their deep, non-meteoric origin.
Kenta K. Yoshida, Ryu Uemura, Akira Ijiri, Minoru Ikehara, Takao Hirajima   +4 more
doaj   +1 more source

ZONATION OF FORM AND COMPOSITION OF PYRITE CRYSTALS OF THE BEREZOVSKY GOLD DEPOSIT (URALS) [PDF]

Минералогия, 2018
Morphology, zonation and composition of pyrite crystals from quartz veins, beresites and listvenites of the Berezovsky gold deposit are examined. During the crystallization, the pyrite forms changed following a relatively simple scheme {111} → {111}+{100}
V.I. Popova, D.A. Artemyev, V.A. Kotlyarov   +2 more
doaj  

Molecular toxicology studies on the quartz hazard. [PDF]

Silicon makes up almost 28% of the Earth's crust and within that crust, quartz (crystalline silica) is one of the most abundant minerals. Exposure to quartz can occurin a number of occupations, including the mining and construction industries in which ...
Duffin, Rodger
core  

AlpIce‐1: a database of geochronological and geomorphological constraints on Alps‐wide palaeoglacier fluctuations between the Last Glacial Maximum and the Holocene

Boreas, EarlyView.
The AlpIce‐1 database is the first compilation of published geomorphological and geochronological markers constraining build‐up, culmination and decay of glaciers from the Last Glacial Maximum through the Holocene across the entire European Alps. AlpIce‐1 integrates more than 4200 surface‐exposure and radiocarbon ages, homogenized, quality controlled ...
Sarah Kamleitner, Susan Ivy‐Ochs, Tancrède P. M. Leger, Andreas Henz, Samuel U. Nussbaumer, Andreas Vieli, Guillaume Jouvet   +6 more
wiley   +1 more source

Estimating past fluid pH and evaporative conditions in Gale crater using terrestrial analog samples from Death Valley, CA

Meteoritics &Planetary Science, EarlyView.
Abstract Boron and lithium have been observed in Ca‐sulfate veins of Gale crater. These elements are highly water mobile and can inform us regarding the aqueous processes that may have taken place in Gale crater. However, the analysis of B in Gale crater is limited to low‐Fe rocks and minerals due to spectral interference of Fe with B in ChemCam data ...
D. Das, P. J. Gasda, K. Berlo, R. J. Leveille, M. A. Nellessen, L. Crossey, E. Peterson, R. Beal, A. L. Reyes‐Newell, S. M. Clegg, N. L. Lanza, O. Gasnault   +11 more
wiley   +1 more source

Geology and geochemistry of giant quartz veins from the Bundelkhand Craton, central India and their implications

, 2007
Giant quartz veins (GQVs; earlier referred to as 'quartz reefs') occurring in the Archean Bundelkhand Craton (29, 000 km(2)) represent a gigantic Precambrian (similar to 2.15 Ga) silica-rich fluid activity in the central Indian shield. These veins form a
RAJU, S, PRAKASH, K, PATEL, SC, MALVIYA, VP, ARIMA, M, PRUSETH, KL, PATI, JK, PATI, P   +7 more
core   +1 more source