Transmission electron microscopy of an interplanetary dust particle with links to CI chondrites [PDF]
The majority of hydrated interplanetary dust particles (IDPs) have compositions that resemble CI and CM chondrites, however, their mineralogies are most similar to the fine grained material in certain altered type-3 carbonaceous and ordinary chondrites ...
Keller, Lindsay P. +2 more
core +1 more source
Mineralogical characterisation and processing of some industrial minerals from Uganda [PDF]
, 1992 This report describes the mineralogical characterisation and processing of several industrial minerals collected by Dr DJ Morgan in October 1991 during a visit to Uganda (Visit report WG/91/31R).
Mitchell, C.J.
core
Carbonate sedimentology: An evolved discipline
The Depositional Record, EarlyView.Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
wiley +1 more source
MICROTOPOCHEMISTRY AND GEOCHEMICAL FEATURES OF A PYRITE NODULE OF СARBONACEOUS SILTSTONES OF THE SAF′YANOVKA MASSIVE SULFIDE DEPOSIT (CENTRAL URAL) [PDF]
Минералогия, 2017 Pyrite nodules of carbonaceous siltstones of the Saf´yanovka nonmetamorphosed massive sulfide deposit consist of a porous poikilitic pyrite core (zone A), which is partly transformed to metacrystalline pyrite aggregates at the periphery (zones В и С ...
N.P. Safina +3 more
doaj
Weathering microenvironments on feldspar surfaces: implications for understanding fluid-mineral reactions in soils [PDF]
, 2008 The mechanisms by which coatings develop on weathered grain surfaces, and their potential impact on rates of fluid-mineral interaction, have been investigated by examining feldspars from a 1.1 ky old soil in the Glen Feshie chronosequence, Scottish ...
Blum +8 more
core +2 more sources
, 2017 Metal sulphides are the most important group of ore minerals. As shown in this brief introduction, much is known about their compositions, crystal structures, phase relations and paragenesis.
D. Vaughan, C. Corkhill
semanticscholar +1 more source
Polygonal tepee structures of Arabia
The Depositional Record, EarlyView.Tepee structures on Sheybarah Island form polygonal microbial cemented crusts in the intertidal. Radiocarbon dating suggests they formed in the Holocene and reflect minor sea‐level changes, highlighting their value as palaeoenvironmental indicators. Satellite surveys identified 126 polygonal features, including coral reefs that may have developed on ...
Pauline Falkenberg +6 more
wiley +1 more source
PHYSICO-CHEMICAL CONDITIONS OF VENT FAUNA FOSSILIZATION IN THE VMS DEPOSITS OF THE URALS AND PONTIDES: FLUID INCLUSION DATA [PDF]
Минералогия, 2016 Fluid inclusions in quartz, barite and calcite from fossilized fauna of hydrothermal massive and clastic ores from the deposits of the Urals (Valentorka, Saf’yanovka, Yubileynoe, Molodezhnoe, Shemur) and Pontides (Killik, Kyzylkaya) are studied with ...
N.N. Ankusheva +2 more
doaj
A DTA/GC for the in Situ Identification of the Martian Surface Material [PDF]
The composition and mineralogy of the Martian surface material remain largely unknown. To determine its composition and mineralogy, several techniques are being considered for in situ analyses of the Martian surface material during missions to Mars.
Mancinelli, R. L. +2 more
core +1 more source
The mineralogy of newly formed dust in active galactic nuclei
, 2017 The tori around active galactic nuclei (AGN) are potential formation sites for large amounts of dust, and they may help resolve the so-called dust budget crisis at high redshift.
Foucaud, Sebastien +10 more
core +1 more source