具有经济性前景的粗岩屑堆天然冷能集聚分析     

Aldar P. Gorbunov 《冰川冻土》2004,26(Z1):197-200

The coarse-detrital deposits have the properties of cold accumulation and maintenance of cold for a long time. Now, at some place where the mean annual temperature of air is positive, one even can get the permafrost by artificial formation of the burial mound. According to these properties, some lowenergy storehouses are built for various purposes.  相似文献   

Comparative Analysis of the Propagation Conditions of Millimeter Radio Waves at Radio Astronomy Polygons in Russia and Uzbekistan     

Bubukin  I. T.  Rakut  I. V.  Agafonov  M. I.  Yablokov  A. A.  Pankratov  A. L.  Gorbunova  T. Yu.  Gorbunov  R. V. 《Astronomy Reports》2021,65(7):598-614

Astronomy Reports - The feasibility of expanding the evaluation parameters was discussed when selecting the “Karadag” test site for the installation of millimeter-wave antennas based on...  相似文献   

Hydrothermally altered hyaloclastites at the Earth’s surface in the rift zone of Iceland: Problem of the biochemogenic accumulation of trace elements     

A. R. Geptner  T. A. Ivanovskaya  E. V. Pokrovskaya  S. M. Lyapunov  A. T. Savichev  A. V. Gorbunov  N. V. Gor’kova 《Lithology and Mineral Resources》2007,42(5):453-476

Results of the mineral and chemical study of surface-altered hyaloclastites from the Theistareykir and Nämafjall geothermal zones, the North Iceland rift, are considered. The paper scrutinizes the composition of hydrothermally altered rocks mainly consisting of clay minerals related to the transformation of bedrock hyaloclastites. The clay minerals also make up slope talus or proluvial deltas around highlands. The major clay minerals in areas of the present-day fumarole activity are kaolinite and smectite, while the redeposited talus-proluvial sediments are mainly composed of smectites. The studied rocks contain framboids, globules, rods, and other structures with morphology and size similar to those of mineralized bacteria. The local concentration of Ag in proluvial deposits is attributed to the intense bacterial activity. It is supposed that elevated contents of some trace elements could be related to an intense microbiotic influence.  相似文献   

Structure of ore fields and deposits: Current status and outlook for further development     

Yu. G. Safonov  G. I. Gorbunov  A. A. Pek  A. V. Volkov  T. M. Zlobina  G. G. Kravchenko  E. P. Malinovsky 《Geology of Ore Deposits》2007,49(5):343-371

The current status of investigations of the structure of ore fields and deposits in Russia is considered. The importance of traditional lines of research in this field and the great body of information acquired is emphasized. The changes in ideas of geodynamic and tectonic crustal evolution have made it necessary to alter concepts of the geological and structural position of ore fields and deposits. New challenges are caused by these changes and progress in the knowledge of ore deposits and the depth of their formation, as well as geodynamic, tectonophysical, and hydrodynamic processes in ore-bearing crustal blocks. The results of hydrodynamic modeling of deposit formation controlled by deeply penetrating fault zones are discussed. Various relationships between hydrodynamic and structural factors in ore formation are considered.  相似文献   

综合利用地球物理和地震资料进行北天山地震危险性研究     

阿卢阿京·瑟德科夫  阿拉·萨德科娃  彼得·戈尔布诺夫 《内陆地震》2006,20(3):282-288

综合分析地震学、地球物理学资料及地壳深部构造信息，对北天山地震危险性进行评价。作为研究的数学基础采用了对正交归一函数系统进行多维随机抽样的定量分析方法。最后对分析结果的成因进行了解释。  相似文献   

Oxygen isotope fractionation factors involving cassiterite (SnO₂): I. calculation of reduced partition function ratios from heat capacity and X-ray resonant studies     

V.B. Polyakov  S.D. Mineev  G. Hu  D.A. Khramov  V.E. Gorbunov 《Geochimica et cosmochimica acta》2005,69(5):1287-1300

Oxygen isotope equilibrium fractionation constants (β¹⁸O-factors) of cassiterite were evaluated on the basis of heat capacity and X-ray resonant (Mössbauer spectroscopy and X-ray inelastic scattering) data.The low-temperature heat capacity of cassiterite was measured in the range from 13 to 340 K using an adiabatic calorimeter. Results of measurements of two samples agree very closely but deviate more than 5% from previous heat capacity data used for calculation of thermodynamic functions. The temperature dependence of heat capacity was treated using the modern version of the Thirring expansion, and the appropriate temperature dependence of the vibrational kinetic energy was found.Measurements of temperature-dependent Mössbauer parameters of cassiterite were conducted in the range from 300 to 900 K. The attempt to describe Mössbauer fraction and the second order Doppler (SOD) shift on the basis of the Debye model failed. The first term of the Thirring expansion of the Mössbauer SOD shift agrees with that calculated from the Sn sublattice vibration density of states (VDOS) obtained via synchrotron X-ray scattering. Based on this agreement we calculated the kinetic energy of the cassiterite Sn sublattice from VDOS.From the kinetic energy of the total cassiterite crystalline lattice and its Sn sublattice, β¹⁸O-factors of cassiterite were computed in the temperature range 300-1500 K by the method of Polyakov and Mineev (2000). Appropriate polynomials, which are valid at temperatures above 400 K, are the following: