Results 41 to 50 of about 9,098 (128)
A Ring of Warm Dust in the HD 32297 Debris Disk [PDF]
, 2007 We report the detection of a ring of warm dust in the edge-on disk surrounding HD 32297 with the Gemini-N/MICHELLE mid-infrared imager. Our N'-band image shows elongated structure consistent with the orientation of the scattered-light disk.
Dohnanyi J. S. +5 more
core +3 more sources
Crystalline Silicate Emission in the Protostellar Binary Serpens--SVS20
, 2005 We present spatially resolved mid-infrared spectroscopy of the class I/flat-spectrum protostellar binary system SVS20 in the Serpens cloud core. The spectra were obtained with the mid-infrared instrument T-ReCS on Gemini-South.
Casali M. M. +13 more
core +1 more source
Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract Dielectric anisotropy in ice alters the propagation of polarized radio waves, so polarimetric radar sounding can be used to survey anisotropic properties of ice masses. Ice anisotropy is either intrinsic, associated with ice‐crystal orientation fabric (COF), or extrinsic, associated with material heterogeneity, such as bubbles, fractures, and ...
Benjamin H. Hills +30 more
wiley +1 more source
Tectonics, Volume 44, Issue 12, December 2025.Abstract Tectonic underplating of high‐pressure/low‐temperature (HP‐LT) tectonic slices is a key mechanism in crustal growth at convergent margins. Yet, the processes controlling the geometry, depth and sequence of underplating events remain poorly constrained.
Maïlys Bouhot +8 more
wiley +1 more source
Sedimentology, Volume 72, Issue 7, Page 2087-2120, December 2025.ABSTRACT Structurally controlled hydrothermal dolomitization, commonly driven by high‐pressure, high‐temperature fluid–rock reactions, offers insights into the tectonic evolution of sedimentary basins and the geochemical composition of their diagenetic fluids.
Huachuan Jiang +7 more
wiley +1 more source
Compositional characterisation of the Themis family
, 2015 Context. It has recently been proposed that the surface composition of icy main-belt asteroids (B-,C-,Cb-,Cg-,P-,and D-types) may be consistent with that of chondritic porous interplanetary dust particles (CPIDPs). Aims.
Binzel, R. P. +7 more
core +3 more sources
Sedimentology, Volume 72, Issue 7, Page 2361-2392, December 2025.ABSTRACT For most of Earth history, carbonate sediments deposited in shallow marine settings are the only remaining archive of changing biogeochemical cycles. All deep‐sea sediments older than >200 Ma have been subducted and are therefore lost from the record. Stable carbon isotope (δ13C) values of shallow marine carbonates are available for older time
Colleen N. Brown +3 more
wiley +1 more source
X-Ray Absorption and Scattering by Interstellar Grains
, 2016 Interstellar abundance determinations from fits to X-ray absorption edges often rely on the incorrect assumption that scattering is insignificant and can be ignored.
Draine, Bruce T., Hoffman, John A.
core +1 more source
A Strategy for Teaching an Effective Undergraduate Mineralogy Course [PDF]
, 2004 An effective undergraduate mineralogy course provides students with a familiarity and understanding of minerals that is necessary for studying the Earth.
R. Swope, Reto Gieré
core +1 more source
Dust Direct Radiative Effect Including Large Particles and Component Minerals
Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.Abstract The direct radiative effect (DRE) of dust aerosols in Earth system models (ESMs) remains highly uncertain, largely due to inadequate representations of particle size distribution (PSD) and mineral composition. Using NASA's Earth Surface Mineral Dust Source Investigation (EMIT) soil mineralogy data and observed PSD in an ESM that resolves dust ...
Longlei Li +18 more
wiley +1 more source