Results 31 to 40 of about 58,048 (209)

Geochemical Data of Scaglia Bianca Chert from Central Italy for Provenance Studies

Journal of Open Archaeology Data
This work presents the first geochemical characterization data of Scaglia Bianca Fm chert from Central Italy. The dataset is part of the chert reference collection (SiliROck) of Sapienza, University of Rome, and includes 110 chert samples collected from ...
Elena Carletti, Giacomo Eramo, Ignazio Allegretta, Luca Forti, Roberto Terzano, Cecilia Conati Barbaro   +5 more
doaj   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

Geological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia, Ryohei Takahashi, Andrea Agangi, Pearlyn Manalo, Hinako Sato   +4 more
wiley   +1 more source

Global Chert Database: A summary record of global chert samples

Geoscience Data Journal
Chert is a sedimentary rock abundant and conspicuous throughout the geologic record. It serves as an essential geological archive and is vital for palaeogeographic reconstruction. The Chert Database Working Group is part of the OneSediment Working Groups
Chenyu Wang, Hanting Zhong, Han Yan, Lingxue Gao, Hu Huang, Mingcai Hou   +5 more
doaj   +1 more source

On the reconstruction of prehistoric social territories: The La Désirade lithic workshops and the distribution of La Désirade chert (French West Indies)

Journal of Lithic Studies, 2020
The widespread presence of raw materials suitable for the production of stone tools on the south-eastern part of La Désirade, a small island east of Guadeloupe (French West Indies), is an interesting feature as these materials cannot be obtained on most ...
Maaike de Waal, Sebastiaan Knippenberg
doaj   +1 more source

Paleolithic and mesolithic finds from profile of the Zemun loess [PDF]

Starinar, 2008
Segment of the material from these two sites was published already in 1984 Owing to circumstances two new Paleolithic sites discovered in the territory of Serbia in recent times have made possible placing of the finds from the sites 'Ekonomija 13 maj ...
Šarić Josip
doaj   +1 more source

Textural and Lithologic Differences of Cretaceous, Tertiary, and Quaternary Gravels of South Arkansas [PDF]

, 1987
Stream gravels have been derived from the Ouachita Mountains since at least Cretaceous times. Past studies have assigned ages to gravel deposits in the basins of the Saline and Little Missouri Rivers on the basis of altitude above local floodplains. This
Wood, Lesli
core   +2 more sources

Faulting patterns in the Lower Yarmouk Gorge potentially influence groundwater flow paths [PDF]

, 2019
Recent studies investigating groundwater parameters, e.g., heads, chemical composition, and heat transfer, argued that groundwater flow paths in the Lower Yarmouk Gorge (LYG) area are controlled by geological features such as faults or dikes.
Alraggad, Marwan, Flexer, Akiva, Guttman, Joseph, Inbar, Nimrod, Magri, Fabien, Möller, Peter, Rosenthal, Eliahu, Siebert, Christian   +7 more
core   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Characteristics, distribution and diagenetic stages of chert in the La Silla Formation (Lower Ordovician), Argentine Precordillera

Anais da Academia Brasileira de Ciências, 2009
The late Cambrian - late Tremadocian La Silla Formation is a carbonate unit of the eastern Precordillera in Argentina whose facies indicate a shallow platform environment. Until this moment, there were no studies that referred to the diagenetic evolution
Mariana M. Raviolo, José A. Barbosa, Virgínio H. Neumann   +2 more
doaj   +1 more source

The Pine Saddle site (3PL1080) in the Ouachita Mountains, Polk County, Arkansas [PDF]

, 2005
Novaculite was procured and knapped by aboriginal Indian populations living in southwestern Arkansas for thousands of years, and there are numerous prehistoric novaculite quarries in the Ouachita Mountains. In Late Archaic times.
Nelson, Bo, Perttula, Timothy K.
core   +1 more source