Results 131 to 140 of about 1,550 (205)

Fossils as cultural heritage: Scientific, commercial and legislative issues

open access: yesGeology Today, Volume 42, Issue 5, Page 263-272, September/October 2026.
Fossils are among the principal sources for understanding the history of life through ‘Deep Time’ and can inform projections of biotic responses to environmental change. Despite a widespread recognition of the scientific, historical and communication significance of fossils in our culture, their role as part of our cultural heritage is still far from ...
Federico Fanti   +5 more
wiley   +1 more source

Characteristics of chlorites in seismogenic fault zones: the Taiwan Chelungpu Fault Drilling Project (TCDP) core sample

open access: yes, 2008
International audienceThe iron content and the asymmetry of iron and magnesium ions in chlorites are examined for the Chelungpu Fault in Taiwan, which is a seismogenic fault. The samples are collected from the cores drilled for the Taiwan Chelungpu Fault
Tanimizu, M.   +27 more
core  

(Ultra)high‐Pressure Metamorphism in Sedimentary Versus Basaltic Rocks: Insights From a Variscan Mélange in the South Carpathians

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 8, Page 585-610, September 2026.
ABSTRACT Reconstructing the pressure–temperature–time (P–T–t) evolution of (ultra)high‐pressure rocks is essential for constraining subduction and collisional dynamics. Subduction zones are often investigated using basic eclogites, whereas nonbasic high‐pressure rocks remain comparatively understudied, potentially hindering a comprehensive ...
Otavio S. G. Silva   +7 more
wiley   +1 more source

Microscopic distribution of trace elements in minerals (chlorites, sulfides, sulfates) in submarine hydrothermal systems

open access: yes, 1989
We have analyzed trace elements in two types of hydrothermal precipitates using the Los Alamos Nuclear Microprobe. Chlorites and epidotes in basalt were analyzed from the Samail Ophiolite of Oman.
Janecky, D. R.   +4 more
core  

Metamorphic Reactivity Influences Amphibole Creep Behaviour

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 8, Page 611-632, September 2026.
ABSTRACT The rheological behaviour of solid‐solution minerals may play an important role in determining how metamorphic crust accommodates deformation. Whether or not a mineral's deformation is diffusion or dislocation‐mediated depends on a range of extrinsic variables such as stress, strain rate and temperature, as well as intrinsic variables such as ...
Alix Osinchuk   +2 more
wiley   +1 more source

Dipole in North African Dust Deposition at the Last Glacial Maximum Explained by Shifted Wind Direction Under Steepened Meridional Temperature Gradients

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Geological records strongly suggest that, globally, Earth's atmosphere was much dustier than present during the Last Glacial Maximum (LGM) but the explanation is debated, with greater aridity, stronger/gustier winds and less effective washout from a drier atmosphere all invoked. Yet dust deposition can be spatially complex.
Fangjingcheng Zhu   +6 more
wiley   +1 more source

Reservoir quality and its controlling diagenetic factors in the Bentiu Formation, Northeastern Muglad Basin, Sudan. [PDF]

open access: yesSci Rep, 2021
Makeen YM   +8 more
europepmc   +1 more source

Iron‐Catalyzed Photochemical Degradation of Organics on Mineral Dust Aerosol Particles

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Iron is almost ubiquitous in mineral dust aerosol particles and is known to catalyze the photochemical degradation of organics. For the first time we measured the loss of organics in aerosol particles containing various mineral dusts, using citric acid as an organic proxy.
Liang Ran   +5 more
wiley   +1 more source

Seismic Exploration for Magmatic Brine Lenses: An Example From Soufrière Hills Volcano, Montserrat

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract The majority of metallic ore deposits are related to processes associated with ancient or modern volcanic systems. Beyond geothermal energy production, volcanoes also represent a potential resource of critical metals, including those required for carbon‐neutral technologies. Geothermal metals occur in subsurface fluid reservoirs fed by surface
Petros Bogiatzis   +4 more
wiley   +1 more source

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