Results 161 to 170 of about 17,746 (268)

Magmatic evolution of Panama Canal volcanic rocks: A record of arc processes and tectonic change. [PDF]

PLoS One, 2017
Farris DW, Cardona A, Montes C, Foster D, Jaramillo C.   +4 more
europepmc   +1 more source

Geochemistry of Early-Middle Miocene volcanic rocks in the backarc region of Japan: Sado, Noto and Tadami areas.

, 1993
Mitsuo Shimazu, Hiroo Kagami, Yoshinobu Kawano, Genjyu Yamamoto   +3 more
openalex   +2 more sources

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

AISLAMIENTO DE BACTERIAS RESISTENTES A ARSENICO DESDE MUESTRAS DE ROCAS VOLCANICAS DE LA QUEBRADA CAMARONES, REGION PARINACOTA: CHILE ISOLATION OF ARSENIC RESISTANCE BACTERIA FROM VOLCANIC ROCKS OF QUEBRADA CAMARONES, PARINACOTA REGION: CHILE

, 2007
Víctor Campos, Cristián Valenzuela, Marcela Alcorta, Guisella Escalante, María A. Mondaca   +4 more
openalex   +1 more source

A realistic approach to explanation of the normal and reversed remanent magnetization of rocks: Application for submarine volcanics

, 2010
Oto Orlický
openalex   +2 more sources

Erratum to: A combined rock magnetic and geochemical investigation of upper cretaceous volcanic rocks in the Pontides, Turkey [PDF]

, 2010
Mualla Cengiz Çinku
openalex   +1 more source

Raman Spectroscopic Analysis and In Situ Heating Experiments on Adranosite Minerals

Journal of Raman Spectroscopy, EarlyView.
This study provides the first detailed Raman spectroscopic characterization of rare ammonium sulfates adranosite, iron‐rich adranosite, and adranosite‐(Fe) from volcanic and coal‐fire environments. Distinct spectral features reveal compositional differences and structural effects of Fe substitution.
Filip Košek, Dávid Szabó, Máté Biró, Adam Culka, Ivan Němec   +4 more
wiley   +1 more source

Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions

Journal of Raman Spectroscopy, EarlyView.
Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong, M. McHugh, J. Parnell, H. N. Lerman, A. Moral, I. B. Hutchinson   +5 more
wiley   +1 more source

Fission–track Ages and Magnetic Susceptibility of Cretaceous to Paleogene Volcanic Rocks in Southeastern Sikhote Alin, Far East Russia [PDF]

, 1998
Takaaki Matsuda, Tohru Sakiyama, Ryo Enami, Yo‐ichiro Otofuji, В. Г. Сахно, Anatoly P. Matunin, R Kulinich, Petr S. Zimin   +7 more
openalex   +1 more source

Textural analysis and emplacement conditions of well-preserved Orosirian felsic volcanic rocks of Northern Amazon Craton, Brazil

, 2021
Carla Joana Santos Barreto, Maurício Barcelos Haag, Jean Michel Lafon, Carlos Augusto Sommer, Lúcia Travassos da Rosa-Costa   +4 more
openalex   +2 more sources