Results 191 to 200 of about 167,615 (303)

Arc Heat Flow and Magmatic Heat Budgets

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen, Kazuki Sawayama, Yuri Taran, Giovanni Chiodini, Tsuneomi Kagiyama, Hiroshi Shinohara, Julie V. Rowland, Benjamin A. Black   +7 more
wiley   +1 more source

The use of minerals, plants and burnt materials in ancient medicine: Approaches to working recipes in John the Physician's <i>Therapeutics</i> from late 13th century Cyprus. [PDF]

Proc Geol Assoc
Scott AC, Lazarou R, Allkin R, Nesbitt M, Lardos A, Lev E, Gibbons S, Grassineau NV, Brakeley J, Zipser B.   +9 more
europepmc   +1 more source

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 391-406, June 2026.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich, Daniela Rubatto, Maria Rosa Scicchitano, Benita Putlitz, Thomas Bovay   +4 more
wiley   +1 more source

Analysis of the impact of vertical deep hole blasting at the bottom of the hole on the lower ore body based on LS-dyna numerical simulation. [PDF]

Sci Rep
Wang S, Yang J, Lu R, Feng Y, Wang D, Zhang Q.   +5 more
europepmc   +1 more source

A Common Reference Material for Mass‐Dependent Sn Isotope Compositions: An Inter‐Laboratory Calibration Approach

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 341-367, June 2026.
Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister, Manuela A. Fehr, Quentin Amet, Gerhard Brügmann, Caroline Fitoussi, Matthias Friebel, Weiqiang Li, Frederic Moynier, Jia‐Xin She, Xueying Wang, Maria Schönbächler   +10 more
wiley   +1 more source

Characterization, Source Analysis, and Ecological Risk Assessment of Heavy Metal Pollution in Surface Soils from the Central-Western Ali Region on the Tibetan Plateau. [PDF]

Toxics
Huang Y, He T, Luo J, Ma X, Zhang T.
europepmc   +1 more source

World resources of mercury. EUR 5306 e. Environment and quality of life [PDF]

, 1974
Brink, J.W., Van Wambeke, L.
core  

New Potential Haematite and Magnetite Reference Materials for Iron Isotope Measurements by Solution Nebulisation MC‐ICP‐MS and by In Situ ns‐LA‐MC‐ICP‐MS

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 407-418, June 2026.
Key Points Two haematite and magnetite materials were developed as potential Fe isotope reference materials. Solution and in situ LA‐MC‐ICP‐MS analyses yielded consistent δ56Fe values. Both materials are isotopically homogeneous and suitable for in situ Fe isotope calibration.
Jialu Yu, Marcus Oelze, Mathias Schannor, Simon Nordstad, Jochen Vogl   +4 more
wiley   +1 more source

REE in fluid inclusions of quartz from gold deposits of north-eastern Russia

Open Geosciences, 2012
Vikent’eva Olga, Gamyanin Gennady, Bortnikov Nikolay   +2 more
doaj   +1 more source

Radioactivity and geochemical characteristics of cryoconite on the Tien Shan glacier. [PDF]

Sci Rep
Miroshnikov A, Serikov A, Kokarev A, Severinenko M, Lennik S, Kharkin P, Akhmetzhanova D, Krasnopyorova M, Milts O, Makarova V, Morenko V, Fedulov V, Kapitsa V, Kasatkin N, Asadulin E, Nadyarnykh G, Sakhiev S.   +16 more
europepmc   +1 more source