Results 11 to 20 of about 9,763,566 (182)

Trace element systematics constrain the origin of fluids that form gem-quality diamonds [PDF]

open access: yesCommunications Earth & Environment
Diamonds crystallise from fluids/melts circulating in the Earth’s mantle. Analysis of these fluids is possible if they remain entrapped in the diamond during growth, but such fluid inclusions are rarely observed in gem-quality stones.
Aleksandr Rakipov   +8 more
doaj   +2 more sources

ALE reveals a surprising link between [Fe-S] cluster formation, tryptophan biosynthesis and the potential regulatory protein TrpP in Corynebacterium glutamicum [PDF]

open access: yesBMC Microbiology
Background The establishment of synthetic microbial communities comprising complementary auxotrophic strains requires efficient transport processes for common goods. With external supplementation of the required metabolite, most auxotrophic strains reach
Rico Zuchowski   +7 more
doaj   +2 more sources

History Matching of Soil Moisture and Evapotranspiration Over Europe Using Iterative Ensemble Smoothers

open access: yesJournal of Advances in Modeling Earth Systems
Land surface models are crucial components within earth system models, simulating the exchanges of water, energy, carbon, and nitrogen between the land surface, atmosphere, and subsurface.
Mikael L. A. Kaandorp   +5 more
doaj   +2 more sources

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Alfsen A   +10 more
europepmc   +2 more sources

Elastic anisotropies of rocks in a subduction and exhumation setting [PDF]

open access: yesSolid Earth, 2021
Subduction and exhumation are key processes in the formation of orogenic systems across the world, for example, in the European Alps. For geophysical investigations of these orogens, it is essential to understand the petrophysical properties of the rocks
M. J. Schmidtke   +4 more
doaj   +1 more source

Measuring Vegetation Heights and Their Seasonal Changes in the Western Namibian Savanna Using Spaceborne Lidars

open access: yesRemote Sensing, 2022
The Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) with its land and vegetation height data product (ATL08), and Global Ecosystem Dynamics Investigation (GEDI) with its terrain elevation and height metrics data product (GEDI Level 2A) missions ...
Farid Atmani   +2 more
doaj   +1 more source

Oxidation state and metasomatism of the lithospheric mantle beneath the Rae Craton, Canada: strong gradients reflect craton formation and evolution

open access: yesScientific Reports, 2021
We present the first oxidation state measurements for the subcontinental lithospheric mantle (SCLM) beneath the Rae craton, northern Canada, one of the largest components of the Canadian shield.
Alan B. Woodland   +6 more
doaj   +1 more source

An exceptional sedimentary record of initial rifting on the East African Plateau in the Miocene: Lessons from depositional cyclicity and palaeoenvironmental proxies

open access: yesThe Depositional Record, 2023
Knowledge about the initial tectonic and depositional dynamics, as well as the influence of early rifting on climate and environmental evolution remains speculative to a large extent, because sediments are usually deeply buried.
Jens Hornung   +3 more
doaj   +1 more source

Experimental Aqueous Alteration of Cortical Bone Microarchitecture Analyzed by Quantitative Micro-Computed Tomography

open access: yesFrontiers in Earth Science, 2021
Bones are one of the most common vertebrate fossil remains and are widely used as proxy archives in palaeontology and archaeology. Previous histological analyses have shown that bone microarchitecture is mostly well-preserved in fossil remains, but ...
Anna G. Kral   +3 more
doaj   +1 more source

Late Jurassic Sunosuchus (Crocodylomorpha, Neosuchia) from the Qigu Formation in the Junggar Basin (Xinjiang, China) [PDF]

open access: yesFossil Record, 2009
Various bone fragments of the crocodylomorph Sunosuchus from the Late Jurassic (Oxfordian) Qigu Formation in the southern Junggar Basin (Xinjiang Province/China) can be assigned to a single specimen and comprise the occipital region of the skull ...
R. Schellhorn   +3 more
doaj   +3 more sources

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