Results 141 to 150 of about 64,179 (348)

Petrological Abstracts and Reviews [PDF]

, 1922
Charles H. Behre
openalex   +1 more source

Assessing Thermal Maturity of the Pendência Formation (Potiguar Basin) Using Vitrinite Reflectance and Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
Palynofacies assemblages from the onshore Potiguar Basin display a wide thermal maturity range, with vitrinite reflectance (%Ro) values of 0.46–2.72 measured from nine samples at depths of 1059–4443 m. A strong correlation exists between %Ro and Raman parameters, specifically the G‐band's full width at half maximum.
Gabriel A. Barberes, Dalva A. L. Almeida, Flávia C. Marques, Julliana F. Alves, Paulo H. M. Toledo, Rafael de Oliveira, Lenize F. Maia, Linus Pauling F. Peixoto, Antonio Carlos Sant'Ana, Celly M. S. Izumi, Gustavo F. S. Andrade, Dorval C. Dias Filho, Taissa R. Menezes, Delano M. Ibanez, Luiz Fernando C. de Oliveira   +14 more
wiley   +1 more source

Petrological studies on Syôwa-Sinzan. Usu Volcano, Hokkaido, Japan

, 1949
Kenzô Yagi
openalex   +2 more sources

Terrestrial Lithium Exploration Adapted From Raman Diagnosis of Phyllosilicates for Mars

Journal of Raman Spectroscopy, EarlyView.
Analyses using a benchtop Raman instrument at the University of Aberdeen and a prototype instrument for remote deployment on Mars based at the University of Leicester successfully discriminated between four varieties of mica (possibly lithium‐rich rocks).
M. McHugh, J. R. T. Armstrong, J. Parnell, H. N. Lerman, C. Malherbe, I. B. Hutchinson   +5 more
wiley   +1 more source

The petrology of the Silurian volcanic sequence at Wellington, N.S.W

, 1948
Margaret J Colditz
openalex   +2 more sources

Preparation and Identification of Heavy Minerals for Archaeometrical Studies: Villa of Fiumana (FC), Italy

Journal of Raman Spectroscopy, EarlyView.
This paper presents a new protocol for the laboratory preparation of archaeological samples. Ceramics that have been hand‐crafted using different sediments as raw materials were collected in a Roman Villa sited in Fiumana (FC), Italy. This method aims at concentrating and analysing heavy minerals in the 15–250 μm grain size fraction, studying the ...
S. Andò, G. Vezzoli, M. Barbarano, L. Fornasini, L. Saviane, R. Villicich, D. Bersani   +6 more
wiley   +1 more source

A database for igneous rocks of the Newfoundland Appalachians. [PDF]

Sci Data
Wang C, Wang T, Ding Y, van Staal CR, Hou Z, Tong Y, Lin S.   +6 more
europepmc   +1 more source

Unveiling the Crystal Structure of Sanidine: A Polarized Raman and Ab Initio Simulation Exploration

Journal of Raman Spectroscopy, EarlyView.
This study combines polarized Raman spectroscopy and ab initio calculations to assign theoretical vibrational modes to observed spectra. Polarized Raman spectra were collected in six geometries (40–1200 cm−1). Theoretical predictions via DFT show good agreement with experiments, though some discrepancies point to influences like trace elements and ...
Michele Cassetta, Luca Bellucci, Sabrina Nazzareni, Francesco Vetere, Marco Giarola, Gino Mariotto   +5 more
wiley   +1 more source

Organic petrology and geochemistry evaluation of upper Permian source rocks in the Lower Yangtze Area. [PDF]

Sci Rep
Zhao Q, Wang J, Yang Y, Chen J, Liang J, Zhang Y, Dong H.   +6 more
europepmc   +1 more source

S. J. Shand on the Importance of the Study of Meteorites to Petrology [PDF]

, 1946

openalex   +1 more source