Recently added
- DSpace Home
- →
- Геология России
- →
- Recent submissions
JavaScript is disabled for your browser. Some features of this site may not work without it.
Геология России: Recent submissions
Now showing items 1281-1300 of 40749
-
(2006)Trace elements in calcareous organisms have been widely used for paleoclimatic studies. However, the factors controlling their incorporation into mollusc shells are still unclear. We studied here the Sr, Mg, Ba and Mn ...
-
(2006)U-series disequilibria measured in waters and rocks from a chalk aquifer in France have been used as an analog for long-term radionuclide migration. Drill core samples from a range of depths in the vadose zone and in the ...
-
(2006)The relationship between potential elemental proxies (Mg/Ca, Sr/Ca and Mn/Ca ratios) and environmental factors was investigated for the bivalve Pecten maximus in a detailed field study undertaken in the Menai Strait, Wales, ...
-
(2006)Shear faults in Upper Cretaceous limestones of the central Negev desert adjacent to the Dead Sea Transform (DST) feature extensive ferruginous mineralization and dolomitization. This has been related to topographically ...
-
(2006)Antarctic lunar meteorites Meteorite Hills 01210 and Pecora Escarpment 02007 are breccias that come from different regolith lithologies on the Moon. MET 01210 is composed predominantly of fractionated low-Ti basaltic ...
-
(2006)We present a detailed study of the co-diagenesis of Fe and P in hydrothermal plume fallout sediments from ?19?S on the southern East Pacific Rise. Three distal sediment cores from 340-1130 km from the ridge crest, collected ...
-
(2006)В статье рассматривается качество районизации. Главным выдвигается критерий «затраты-точность». Ставится вопрос сравнения двух районизаций одной территории. Приводится алгоритм позволяющий осуществить такое сравнение.
-
(2006)Методические и технологические вопросы построения сложной территориально распределенной информационной системы в сфере геологического изучения и использования недр на примере создания информационной системы государственного ...
-
(2006)В статье рассматривается метод обработки информации о геоинформационных объектах на основе топологических отношений. Данный метод позволяет формализовать топологическую составляющую пространственных объектов и на ее основе ...
-
(2006)Water has played an important role in the Earth’s evolution. The incorporation of water as hydroxyl into solid mineral phases or as coexisting hydrous fluids and melts affects the chemical and physical properties of crust ...
-
(2006)Hydrogen traces change the physical properties of mantle minerals to an extent that is far out of proportion to its low concentration. These properties include mechanical strength, melting behavior, diffusion rate, electrical ...
-
(2006)Peridotites associated with pyroxenites (with rare olivine and spinel) are exposed on the islands of San Jorge and Santa Isabel in the Solomon Islands. Orthopyroxenite occurs in large outcrops (?100?m2) whereas websterite ...
-
(2006)Primitive nephelinites and basanites from the Tertiary Hocheifel area of Germany (part of the Central European Volcanic Province; CEVP) have high Mg-number (>0·64), high Cr and Ni contents and strong light rare earth element ...
-
(2006)The Granadilla eruption at 600?ka was one of the largest phonolitic explosive eruptions from the Las Canadas volcano on Tenerife, producing a classical plinian eruptive sequence of a widespread pumice fall deposit overlain ...
-
(2006)The caldera-forming 26·5 ka Oruanui eruption (Taupo, New Zealand) erupted 530 km3 of magma, >99% rhyolitic, <1% mafic. The rhyolite varies from 71·8 to 76·7?wt % SiO2 and 76 to 112?ppm Rb but is dominantly 74–76?wt % SiO2. ...
-
(2006)The genesis of the pegmatitic pyroxenite that often forms the base of the Merensky Unit in the Bushveld Complex is re-examined. Large (>1?cm) orthopyroxene grains contain tricuspidate inclusions of plagioclase, and chains ...
-
(2006)Al2SiO5 reaction textures in aluminous schist and quartzite of the northern Picuris range, north-central New Mexico, record a paragenetic sequence of kyanite to sillimanite to andalusite, consistent with a clockwise P–T ...
-
(2006)A localized dehydration zone, Sondrum stone quarry, Halmstad, SW Sweden, consists of a central, 1?m wide granitic pegmatoid dyke, on either side of which extends a 2·5–3?m wide dehydration zone (650–700°C; 800?MPa; ...
-
(2006)The volcanic history of Santo Antao, NW Cape Verde Islands, includes the eruption of basanite–phonolite series magmas between 7·5 and 0·3?Ma and (melilite) nephelinite–phonolite series magmas from 0·7 to 0·1?Ma. The most ...
-
(2006)Hydrogen is a major constituent in a wide variety of minerals in the Earth’s crust. Usually H is bonded to oxygen forming H 2 O molecules or OH − groups. In rare cases, H 3 O + , H 3 O 2− and H 5 O 2+ units are also formed. ...
Now showing items 1281-1300 of 40749