Results 61 to 70 of about 225,756 (235)

ASSESSMENT OF GOLD MELT INFLUENCE ON THE PLATINOID MICROINCLUSIONS IN ANCIENT GOLD PRODUCTS: A COMPARISON WITH EXPERIMENTAL DATA [PDF]

open access: yesМинералогия, 2017
The results of gold melt influence on platinoid microinclusions in ancient gold products from the burial mounds of the Urals and Phanagoria are compared with the experimental data.
V.V. Zaykov   +9 more
doaj  

Refining the interpretation of lacustrine carbonate isotope records: Implications of a mineralogy-specific Lake Van case study [PDF]

open access: yes, 2019
Oxygen and carbon isotope (δ18O and δ13C) data from bulk carbonates are widely applied proxies for temperature, the precipitation/evaporation ratio and productivity in lacustrine palaeohydrology and palaeoclimatology. In case of the terminal and alkaline
Immenhauser, Adrian   +4 more
core   +1 more source

The mineralogy of newly formed dust in active galactic nuclei

open access: yes, 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

Revision of the age and stratigraphic relationships of Hinemaiaia Tephra and Whakatane Ash, North Island, New Zealand, using distal occurrences in organic deposits [PDF]

open access: yes, 1986
The stratigraphic and chronologic relationships of Hinemaiaia Tephra and Whakatane Ash are examined using distal tephras preserved in organic-rich deposits at five sites in eastern and northern North Island, New Zealand. A c.
Lowe, David J.
core   +2 more sources

An integrated mineralogical, petrographic, light stable isotope and noble gas investigation of Sahara 99201 ureilite [PDF]

open access: yes, 2001
New ureilite Sahara 99201 has been investigated to determine mineralogy, petrography, light stable isotopes and noble gases. The sample is a typical olivine pigeonite ureilite (Fo 78, Wo 10, En 72).
Franchi, Ian   +5 more
core  

A Strategy for Teaching an Effective Undergraduate Mineralogy Course [PDF]

open access: yes, 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

Transmission electron microscopy of an interplanetary dust particle with links to CI chondrites [PDF]

open access: yes
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

Infrared observations of asteroids from earth and space [PDF]

open access: yes
Infrared reflectances at wavelength between 1 and 4 micrometers are used for determining asteroid surface mineralogy, surface composition, diameters, and albedos.
Lebofsky, L. A.   +2 more
core   +1 more source

Tertiary-Quaternary subduction processes and related magmatism in the Alpine-Mediterranean region [PDF]

open access: yes, 2006
During Tertiary to Quaternary times, convergence between Eurasia and Africa resulted in a variety of collisional orogens and different styles of subduction in the Alpine-Mediterranean region.
Downes, Hilary   +2 more
core   +1 more source

A DTA/GC for the in Situ Identification of the Martian Surface Material [PDF]

open access: yes
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

Home - About - Disclaimer - Privacy