Results 91 to 100 of about 131,165 (299)

An archean suture zone in the Tobacco Root Mountains? (1984) Evolution of Archean Continental Crust, SW Montana (1985) [PDF]

The Lake Plateau area of the Beartooth Mountains, Montana were mapped and geochemically sampled. The allochthonous nature of the Stillwater Complex was interpreted as a Cordilleran-style continental margin.
Kain, L., Mogk, D. W.
core   +1 more source

Geochemical-geophysical investigations, Fairbanks district [PDF]

, 1967
Trace element distribution in a subarctic valley in the Cleary Hill area of the Fairbanks gold district has been studied. Zinc and arsenic have been found excellent pathfinder elements for auriferous deposits. Methods of analysis for copper, lead, zinc,
Beistline, E.H., Heiner, L.E., Loperfido, J.C., Moody, D.W., Peterson, R.J., Thomas, B.I., Wallis, J.E., Wolff, E.N.   +7 more
core  

Sr-Nd isotope geochemistry of the early Precambrian sub-alkaline mafic igneous rocks from the southern Bastar craton, Central India [PDF]

, 2009
Sr–Nd isotope data are reported for the early Precambrian sub-alkaline mafic igneous rocks of the southern Bastar craton, central India. These mafic rocks are mostly dykes but there are a few volcanic exposures.
BL Weaver, DA Papanastassiou, DJ DePaolo, F Kalsbeek, G Sarkar, Gulab C. Gautam, H Crookshank, HC Halls, J Blichert-Toft, JE French, JE French, JJW Rogers, JJW Rogers, M Anand, M Ramakrishnan, NM Evensen, Rajesh K. Srivastava, RCO Gill, RE Ernst, RE Ernst, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RK Srivastava, RL Rudnick, Rob M. Ellam, RP Hall, RW Maitre Le, SA Drury, SL Goldstein, SM Naqvi, SR Taylor, TE Krough, TN Irvine, V Rajamani   +39 more
core   +1 more source

Comparing non‐staining methods with Mutvei's solution to visualize growth increments in short‐lived intertidal marine gastropod shells

Limnology and Oceanography: Methods, EarlyView.
Abstract Mutvei's solution is a widely utilized standard staining method for revealing growth increments in biogenic carbonates; however, it is a slightly toxic, destructive approach with varying success across species groups. Therefore, there has been growing interest in finding non‐toxic, less destructive, and straightforward alternative techniques ...
Mahsa Alidoostsalimi, Amy L. Prendergast, Sean Ulm, Ariana B. J. Lambrides, Ian J. McNiven, Russell N. Drysdale, Nguurruumungu Indigenous Corporation, Walmbaar Aboriginal Corporation RNTBC   +7 more
wiley   +1 more source

Evaluation of Geogenic Enrichment Using Satellite, Geochemical, and Aeromagnetic Data in the Central Anti-Atlas (Morocco): Implications for Soil Enrichment

Earth
Natural geogenic effects lead to alterations in soil heavy metal concentrations. This study assesses the presence of elevated trace-element concentrations in the Oued Irriri watershed in southeastern Morocco.
Mouna Id-Belqas, Said Boutaleb, Fatima Zahra Echogdali, Mustapha Ikirri, Hasna El Ayady, Mohamed Abioui   +5 more
doaj   +1 more source

Petrographic and geochemical analyses to characterise the source of built historical natural stones - a case study of the volcanic stones from historical quarries and Baoguosi Temple in the city of Ningbo, China. [PDF]

Built Herit, 2023
Guo X, Zhang Y, Xu X, Dai S.
europepmc   +1 more source

Miocene Dipterocarpaceae leaf from Sumatra and amber geochemical analyses

Boletín de la Sociedad Geológica Mexicana
A large leaf was discovered on a piece of fossilized resin from Jambi Province, Sumatra. Based on its location, mid-Miocene age, and structural similarity to modern leaves of members of the family Dipterocarpaceae, it is tentatively assigned to the genus ?Dipterocarpus.
George O. Poinar Jr., Virginia Friedman, Joseph B. Lambert, Adam Kingery, Alejandro Bugarin, Yuyang Wu, Francisco J. Vega   +6 more
openaire   +1 more source

Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas [PDF]

, 2015
© 2016. Universidad Complutense de Madrid. The commercial rights of the printed and online versions of Journal of Iberian Geology are property of the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones CientÍficas (CSIC),
Jeffries, T, Losantos, E, Orejana, D, Villaseca, C   +3 more
core   +3 more sources

Demonstration, validation, and application of hyperspectral microscopy for the collection of cyanobacterial spectral signatures

Limnology and Oceanography: Methods, EarlyView.
Abstract Cyanobacterial and other algal blooms are an environmental concern in waterbodies worldwide. While these blooms are a nuisance for recreational activities, they can also be harmful to human and wildlife health when the algae produce and release toxins.
Natalie C. Hall, Adam C. Mumford, Aaron M. Goldfain, David W. Allen, E. Terrence Slonecker, Alisa Shtabnoy, Carl J. Legleiter, Sarah A. Spaulding   +7 more
wiley   +1 more source

X-ray fluorescence (XRF) in the investigation of the composition of earth materials: a review and an overview

Geology, Ecology, and Landscapes, 2018
X-ray fluorescence (XRF) spectrometry is a well-known, well-established and widely applied technique in the determination of many major elemental compositions of earth materials.
Temitope D. Timothy Oyedotun
doaj   +1 more source