Results 91 to 100 of about 36,668 (189)

Mixed Magnetocrystalline Anisotropy and the Magnetization of Monoclinic 4C Pyrrhotite

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract Ferrimagnetic, monoclinic 4C pyrrhotite (Fe7S8), as the iron deficient endmember of the pyrrhotite solid‐solution series (Fe1–xS, 0 < x ≤ 0.125), is the main sulfide mineral widely used in rock and paleomagnetic studies of Earth's crust and extraterrestrial materials. Its particular magnetocrystalline anisotropy (MCA), characterized by an easy
Andreas U. Gehring   +3 more
wiley   +1 more source

Recent and fossil deposits of dark material in Martian Craters [PDF]

open access: yes, 2006
As a result of weathering and aeolian processes a fine-grained dark material is distributed all over the Martian surface. On crater floors it is frequently accumulated as dunes. Mobile dunes are probably built and shifted by the actual wind fields.
Forget, Francois   +6 more
core  

ESGS: A 3D Reconstruction Method for the Martian Surface Based on Optical Remote Sensing Images

open access: yesRemote Sensing
Mars exploration is an advanced field of global deep space exploration. Accurate three-dimensional reconstruction of the Martian surface topography is very important for autonomous navigation, scientific target recognition, and operation planning.
Qinghe Guan   +4 more
doaj   +1 more source

Experimental Shock Metamorphism of Zircon, Apatite, and Whitlockite From 5 to 40 GPa

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Hypervelocity impacts modify planetary crusts and can alter the microstructures of key minerals used to reconstruct planetary histories. We investigated the potential effects of impacts on three common accessory minerals found in terrestrial crusts by experimentally shocking zircon, apatite, and whitlockite at 5, 10, 20, and 40 GPa.
K. A. Cone   +10 more
wiley   +1 more source

Low-order dynamical behavior in the martian atmosphere: Diagnosis of general circulation model results [PDF]

open access: yes, 2009
The hypothesis of a low dimensional martian climate attractor is investigated by the application of the proper orthogonal decomposition (POD) to a simulation of martian atmospheric circulation using the UK Mars general circulation model (UK-MGCM).
Martinez-Alvarado, O   +11 more
core   +1 more source

Temporal and Spatial Prediction of Column Dust Optical Depth Trend on Mars Based on Deep Learning

open access: yesRemote Sensing
Dust storms, as an important extreme weather event on Mars, have significant impacts on the Martian atmosphere and climate and the activities of Martian probes. Therefore, it is necessary to analyze and predict the activity trends of Martian dust storms.
Xiangxiang Yan   +3 more
doaj   +1 more source

Pengaruh Pencahayaan Ruang Kerja Terhadap Stres Kerja Karyawan Biro Perencanaan dan Kerjasama Universitas Sumatera Utara

open access: yesJurnal Diversita, 2017
Stres kerja yang dialami karyawan dapat merugikan perusahaan ataupun organisasi tempatnya bekerja. Lingkungan kerja yang baik dan nyaman dapat menurunkan stress kerja karyawan sehingga karyawan dapat bekerja maksimal.
Emmy Martian, Findy Suri
doaj   +1 more source

Optical Depths of Dust Devils Observed in Gale Crater, Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The Mars Science Laboratory (MSL) Curiosity Rover has detected dust devils using the on‐board Navigation Cameras (Navcam) and the Rover Environmental Monitoring Station (REMS) throughout the MSL mission. While previous studies have quantified the frequency and location of dust devils, their optical depth and how it changes with time, season ...
G. Bischof   +3 more
wiley   +1 more source

Ground Penetrating Radar Observations of Subsurface Structures From the Makgadikgadi Pans (Botswana): A Terrestrial Analogue of Martian Playa Lakes

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Playa lakes are considered promising landing sites on Mars because of their strong astrobiological potential. Therefore, sediments and buried structures in terrestrial playa lakes have become the focus of numerous analogue studies. The inclusion of ground penetrating radar (GPR) in the payloads of Martian missions has opened new avenues for ...
M. Shawel   +6 more
wiley   +1 more source

Fossilised Pioneer Microbialite Communities on Basaltic Substrates at Lake Ashenge (Tigray, Ethiopia): A Model for Ecosystems in Noachian–Hesperian Martian Lakes?

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Microbial communities are strongly controlled by local nutrient availability, frequently resulting from mineral weathering and erosion. On Earth, basaltic rocks in habitable alkaline lacustrine environments are often initially colonised by ‘pioneer’ communities that induce the precipitation of fine‐scale microbial carbonate ‘coatings’; on Mars,
Keyron Hickman‐Lewis   +6 more
wiley   +1 more source

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