Results 181 to 190 of about 1,985 (228)

Connecting Meteorite Spectra to Lunar Surface Composition Using Hyperspectral Imaging and Machine Learning

Hesar FF, Raouf M, Chegeni A, Soltani P, Foing B, Chatzitheodoridis E, de Dood MJ, Verbeek FJ.   +7 more
europepmc   +1 more source

Space weathering effects in Bennu asteroid samples. [PDF]

Nat Geosci
Keller LP, Thompson MS, Seifert LB, Melendez LE, Thomas-Keprta KL, Le L, Snead CJ, Welten KC, Nishiizumi K, Caffee MW, Masarik J, Busemann H, Krietsch D, Maden C, Rahman Z, Dukes CA, Cloutis EA, Gainsforth Z, Sandford SA, DellaGiustina DN, Connolly HC, Lauretta DS.   +21 more
europepmc   +1 more source

Effect of Laboratory Reagents for Cleaning Modern Contamination on the δ15N Integrity of Nitrogen‐Poor Samples

Rapid Communications in Mass Spectrometry, Volume 40, Issue 19, 15 October 2026.
ABSTRACT Rationale Nitrogen isotope values have been widely used for tracing ancient biogeochemical processes, but contaminant‐sensitive materials, such as Precambrian sedimentary rocks, meteorites, or returned extraterrestrial samples, often have low nitrogen levels and are thus vulnerable to modern organic contamination.
Kunmanee Bubphamanee, Andrew Schauer, Roger Buick   +2 more
wiley   +1 more source

Core metamorphism controls the dynamic habitability of mid-sized ocean worlds-The case of Ceres. [PDF]

Sci Adv
Courville SW, Castillo-Rogez JC, Daswani MM, Robare J, O'Rourke JG.   +4 more
europepmc   +1 more source

Organic‐matter sources and stability in kettle‐hole sediments: A combined thermogravimetric and isotopic approach

Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Kettle‐holes are small but biogeochemically active landscape elements that integrate terrestrial inputs and influence carbon and nitrogen cycling. However, the stability and sources of organic matter (OM) in kettle‐hole sediments remain poorly understood.
Safdar Bashir, Kai Nils Nitzsche, Zachary Kayler   +2 more
wiley   +1 more source

Nature visible only digitally. [PDF]

Patterns (N Y)
Iba Y, Kubota A, Takeda Y, Derin MO, Ikegami S, Mutterlose J, Harada T, Takeuchi T, Tainaka K.   +8 more
europepmc   +1 more source

Multi‐proxy sequence stratigraphy of a mixed carbonate–siliciclastic shelf across the Jurassic–Cretaceous transition

The Depositional Record, Volume 12, Issue 4, September 2026.
An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
wiley   +1 more source

Hidden pressure-stabilized lead reservoirs in Earth's mantle. [PDF]

Nat Commun
Liu S, Guo M, Yu S, Redfern SAT.
europepmc   +1 more source

Listening, in Times of Noise

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Li Li
wiley   +1 more source

Warming‐Induced Shifts in Relative Humidity Reshape Global Soil Organic Carbon Storage

Global Change Biology Communications, Volume 1, Issue 3, September 2026.
We developed a four‐dimensional deep learning framework for predicting global soil organic carbon (SOC). It generates spatially explicit, soil depth‐resolved, and temporally connected SOC estimates. ABSTRACT Soil organic carbon (SOC) underpins food production, ecosystem functioning, and climate regulation.
Lidong Li, Tala Awada, Mark C. Stone, Virginia L. Jin, Marty R. Schmer   +4 more
wiley   +1 more source