Results 91 to 100 of about 78,343 (295)

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Opium trade and use during the Late Bronze Age: Organic residue analysis of ceramic vessels from the burials of Tel Yehud, Israel

Archaeometry, EarlyView., 2022
Abstract Organic residue analysis was conducted on various vessels from burials at Tel Yehud, Israel. The analyses led to new reliable evidence for the presence of opioid alkaloids and their decomposition products. This research revitalizes a decades‐old discussion on the presence and function of the opium trade across a cultural region of utmost ...
Vanessa Linares, Eriola Jakoel, Ron Be’eri, Oded Lipschits, Ronny Neumann, Yuval Gadot   +5 more
wiley   +1 more source

Calcite-forming Bacillus licheniformis Thriving on Underwater Speleothems of a Hydrothermal Cave

, 2018
The underwater environment of Grotta Giusti (Monsummano Terme, Italy) is a suggestive setting with different types of speleothems including “leafy” and “cauliflower” concretions along the walls and roof, and conical pseudo-stalagmites on the floor.
Alessandro Buccolieri (5220857), Daniela Manno (448227), Luciano Tanini (5444210), Pietro Alifano (70214), Salvatore Maurizio Tredici (587992), Matteo Calcagnile (4902010)   +5 more
core   +1 more source

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

Geological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga, Juliano Kuchle, Francyne Amarante, Garibaldi Armelenti, Claiton Marlon dos Santos Scherer, Luiz Fernando De Ros, Bruno de Souza Silva, Igor Marzano, Márcia Karam, Candy Shirley Rosa Contreras, João Claudio Conceição, José Luis Drummond Alves, Luiz Landau   +12 more
wiley   +1 more source

Geothermometry Constraints on the Architecture of the Ouachita Mountains in Arkansas [PDF]

, 1997
A calcite and quartz microstructure study was done to constrain the burial and exhumation history of the Paleozoic rocks in the Ouachita Mountains, Arkansas.
Kimp, Curran
core  

Dissecting The Salinity-Dependence Of Wettability In Oil/Brine/Calcite System Using Molecular Simulations [PDF]

, 2019
Low salinity water flooding has shown great promise due to its cost-effectiveness and low environmental impact for improving and sustaining oil production.
Arjun, Valiya Parambathu, Dilip, Asthagiri, Mohamed, Alhosani, Fernando Miguel, Yrazu, Walter, Chapman   +4 more
core   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

Ultra fine grinting of calcite (CaCO3) power in a vertical stirred mill: Effect of some variables on product fineless [PDF]

, 2012
In this study, the wet ultra fine grinding of calcite (CaCO3) powder in a vertical stirred mill was performed. The influence of some operating variables such as solids concentration, stirrer speed and ball filling ratio on the product fineness and ...
Toraman O.Y.
core   +1 more source

Effect of sulfate on magnesium incorporation in low-magnesium calcite [PDF]

, 2019
International audienceThe incorporation of magnesium and sulfate in calcite is frequently used to characterize and trace the environmental conditions occurring during carbonate mineral formation.
Goetschl, Katja, Purgstaller, Bettina, Goetschl, Katja E., Dietzel, Martin, Mavromatis, Vasileios   +4 more
core   +1 more source

Tectono‐Sedimentary Evolution of the Neogene İnegöl Basin (NW Anatolia): Constraints on Transtensional Basin Development at the Junction of the Western Anatolian Extensional Province and the North Anatolian Fault Zone

Geological Journal, EarlyView.
The study outlines the tectono‐sedimentary evolution of the İnegöl Basin in north‐western Anatolia. Basin formation was controlled by interacting extensional and strike‐slip fault systems linked to uplift of the Uludağ Massif. Terrestrial sedimentation from the Miocene to Pleistocene is reconstructed using abundant fossil mammal assemblages that ...
M. Cihat Alçiçek, Volkan Karabacak, Serdar Mayda   +2 more
wiley   +1 more source