Browsing by Title
- DSpace Home
- →
- Browsing by Title
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing by Title
Now showing items 15805-15824 of 39126
-
(2001)Liquidus phase relations have been determined in the system Qz-Ab-Or-H2O at H2O-undersaturated conditions (melt water content of 1 wt% H2O) in the pressure range 200-800 MPa. Starting materials were homogeneous synthetic ...
-
(2001)Hypotheses of the genesis of the Western Pansky Tundra layered intrusion differ in the interpretation of some key problems in the petrology of the pluton. These include: (1) whether the pluton is an individual geologic ...
-
(2003)According to Lacey's formula, the width of a natural channel at bankfull flow is proportional to the root of the discharge. It is a very simple formula that has been confirmed by many authors and which, until now, has had ...
-
(Федеральное государственное бюджетное учреждение науки Геофизический центр Российской академии наук, 2018)This article proposes the use of Big Data principles to support the future extraction of hydrocarbon resources. It starts out by assessing the possible energy-system transformations in order to shed some light on the future ...
-
(2004)The results of X-ray and thermal analysis of amphiboles can provide insights into their commercial significance and the nature of discordant K-Ar age determinations. Conclusions (1) The unit cell parameters of amphiboles ...
-
(1998)According to estimated temperatures and pressures (700-860°C, 13-20 kb) the xenoliths of the grabuliteeclogite group from alkaline ultramafic dykes and pipes of the Kandalaksha graben come from the low crust. The mineral ...
-
(2005)The production rate and isotopic composition of H2 derived from radiolytic reactions in H2O were measured to assess the importance of radiolytic H2 in subsurface environments and to determine whether its isotopic signature ...
-
(2001)Yield strength is an important property of particle-fluid suspensions. In basaltic lavas that crystallize during flow emplacement, the onset of yield strength may result in threshold transitions in flow behavior and flow ...
-
(1998)Patterson (1956) established that the age of Earth is close to that of meteorites. Over the last 20 years, workers argued for younger age for core differentiation based on Pb-Pb model ages and tungsten isotopic data and ...
-
(2004)Representative C-isotope characteristics are first obtained for the Lower Yudomian carbonates (YuKanda Formation) from the Belaya and Sakhara sections in the Yudomian stratotype area. The least altered carbonate samples ...
-
(2004)The Zerkaly chondritic meteorite belongs to the high-Fe (olivine-bronzite) type H5, with a severely limonitized matrix. Like chondrules, the matrix is characterized by nonuniform texture. The meteorite underwent secondary ...
-
(2003)The ZONMET model of metal condensation is a FORTRAN computer code that calculates condensation with partial isolation–type equilibrium partitioning of the 19 most abundant elements among 203 gaseous and 488 condensed phases ...
-
(1998)The δ13C of biogenic methane produced in marine sediments ranges from -110 to -55%%. The isotopic composition of the methane (δ13CCH4) is constrained by the fraction of metabolized organic carbon converted to CH4. The flux ...
-
(2004)We extend theories of thermoremanent magnetization (TRM) and partial TRM (pTRM) in multidomain (MD) grains to model thermal demagnetization and pTRM acquisition steps in Thellier paleointensity determination. Because of ...
-
(2002)Scales of nine thelodont taxa are described from the Red Bay Group of Spitsbergen, also characterized by its assemblage of other typical Early Devonian vertebrates. The four thelodont-bearing horizons of the lower ...
-
(2002)
-
(2001)Mechanism of development of area of induced gas permeability has been considered. The area arises in initially non-permeable coal seam. It has been shown that shrinkage of coal and rock pressure are the determining factors. ...
-
(Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский горный университет», 2020)Series of calculations for the artificial freezing of the rock mass during construction of mineshafts for the conditions of a potash mine in development was carried out. Numerical solution was obtained through the finite ...
-
(2003)This study proposes a new approach, which describes a finite-diameter horizontal well and flow inside the pumping well jointly. This approach utilizes a new treatment for in-well hydraulics, thus eliminating the flux- or ...
Now showing items 15805-15824 of 39126