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GEOBASE 1997/12-1998/11 GEOBASE 1/90-11/97 GEOBASE 1980-1989

Record 1 of 25 in GEOBASE 1997/12-1998/11
TITLE The crustal structure of the southern Caspian region. AUTHOR Mangino-S.; Priestley-K. SOURCE Geophysical-Journal-International.1998; 133(3): 630-648. ABSTRACT The south Caspian basin appears to behave as a relatively rigid aseismic block within the otherwise deforming Alpine-Himalayan orogenic belt. This anomalous character suggests that there is a fundamental compositional difference between the crust of the south Caspian basin and that of the surrounding region. Five new estimates of crustal velocity structure beneath the southern Caspian region are determined by the teleseismic receiver function method. These models show that the crust in Turkmenia along the trend of the Apshceron-Balkhan Sill-Lopet Drag Mountains is 50 km thick. In the southwestern part of the Caspian basin the crust is 33 km thick and consists of a 13 km thick sedimentary section lying on a high-velocity (Vp ˜7.1 km s^-1) lower-crustal section. In the southeastern part of the basin the crust is 30 km thick and consists of a 10 km thick sedimentary section overlying a 20 km thick low-velocity (Vp ˜5.8 km s^-1) crystalline crust. The receiver function models are combined with velocity models from previous Russian Deep Seismic Sounding studies into a ˜1800 km long ESE-WNW-trending crustal cross-section across the Kura Depression, the south Caspian basin and the Kopet Dag Mountains. The most significant features of this crustal model are the 20 km variation in thickness of Cenozoic sedimentary basin deposits, the absence of a 'granitic' (Vp ˜5.8-6.5 km s^-1) crustal layer in the central part of the south Caspian basin, and 20 km of crustal thinning beneath the central part of the basin. The Moho beneath the south Caspian basin has a broad arch-like structure whose western boundary is a relatively narrow zone across which the crust thins rapidly (˜20 km thinning over a 100 km zone) and whose eastern boundary has a more gradual change in crustal thickness (˜20 km thinning over a 400 km zone). The velocity-depth profiles derived from the receiver functions are compared to laboratory velocity estimates made at pressures and temperatures appropriate for the lower crust in Turkmenia, but the seismic P-wave data alone do not permit differentiation between the various possible rock types. The crustal model developed for the south Caspian basin is consistent with the hypothesis that the crystalline crust of the basin is a section of oceanic crust that is being overthrust by the continental crust around much of its

margins. However, we cannot rule out the possibility that the crystalline crust beneath the basin is a section of lower continental crust whose upper crustal section has been removed by erosion or faulting. ACCESSION NUMBER 0368403

Record 2 of 25 in GEOBASE 1997/12-1998/11
TITLE Deep petroleum occurrences in the Lower Kura Depression, South Caspian Basin, Azerbaijan: an organic geochemical and basin modeling study. AUTHOR Inan-S.; Yalcin-M.N.; Guliev-I.S.; Kuliev-K.; Feizullayev-A.A. SOURCE Marine-and-Petroleum-Geology.1997; 14(7-8): 731-762. ABSTRACT High sedimentation rates (as much as 2500 m/Ma) during Pliocene-Pleistocene, with a resultant undercompacted section as thick as 10 000 m, and lower than normal geothermal gradients are the main characteristics which have created all the means for generation and preservation of oil at deep layers in the Lower Kura Depression. Oils collected from eight different oil fields for analyses seem to have originated from a common source rock which probably is clasic, deposited in relatively subanoxic to suboxic transitional marine environment receiving low to moderate input of terrestrial organic matter. Oils from shallow (<3000 m) and cold (<70-80°C) reservoirs have been altered to various extent by bacterial activity. A computer-aided basin modeling study has been carried out to outline the spatial variation of the oil window and thus help in further identification of possible source rocks for the reservoired oil in the Lower Kura Depression. Results suggest that the potential hydrocarbon source horizons of the Miocene and Pliocene Red Bed Series of the so called Productive Succession are, even at depocenter areas, immature with respect to oil generation, and thus, are very unlikely to have been source rocks for the reservoired oils. However, the Oliogene-Lower Miocene Maykop rocks are marginally mature to mature depending on locality and the Eocene and older rocks are mature with respect to oil generation at all representative field locations. Oil generation commenced at the end of Pliocene and continues at present at depths between 6000 and 12 000 m. An unusually deep (>10 000 m) oil window in the depocenter areas has been caused by the depressed isotherms due to extremely high sedimentation rates (up to 3000 m/Ma) for the last two million years. The main phase of oil generation is taking place at depths greater than what most of the wells in the study area have reached. ACCESSION NUMBER 0356118
Record 3 of 25 in GEOBASE 1997/12-1998/11
TITLE Land reclamation-irrigation applications of geomorphologic mapping in the Kura-Araks lowland of Azerbaijan. AUTHOR

Tanryverdiyev-Kh.K.; Safarov-A.S. SOURCE Mapping-Sciences-and-Remote-Sensing.1996; 33(1): 56-60. ABSTRACT The authors describe the results of an extensive geomorphologic mapping program for the Kura-Araks Lowland of Azerbaijan, designed to increase the level of background information available for the rational planning and operation of irrigation systems. A particular focus is placed upon the identification and deposition of landforms of the Lowland exerting an influence on hydrogeologic conditions, the ground water regime, and on crop cultivation patterns. ACCESSION NUMBER 0336728

Record 4 of 25 in GEOBASE 1/90-11/97
TITLE The morphotectonics of Azerbaijan and eastern Transcaucasian region from a neomobilistic point of view. AUTHOR Lilienberg,-D.A.; Budagov,-D.A.; Aliev,-A.S. SOURCE Geomorfologiya.1996. 4/-, 31-50.. ABSTRACT Geodynamic mechanisms are discussed with a view to their geomorphic effect in the development of morphostructures in Azerbaijan and Eastern Transcaucasian region resulting from the collision between the Eurasian and Arabian plates in the Caucasus- Asia Minor sector. A multilayered structure of overlying thrusts has been identified in the mountain systems of the Great and Lesser Caucasus, Talysh, Kura intermountain rift; the structure is reflected in geomorphology as a system of longitudinal morphostructural steps and transversal blocks, general asymmetry and curvature types of mountains, varous types of underthrusts, river network outlines, etc. The maximum pressure of the Arabian cusp and the orogens formation falls on the Pliocene-Quaternary time. ACCESSION NUMBER (1233793); 97J-99999
Record 5 of 25 in GEOBASE 1/90-11/97
TITLE Structure of anthropogenic and natural runoff losses in the Kura River Basin. AUTHOR Tsytsenko,-K.-V.; Tulvert,-V.-F. SOURCE Russian-Meteorology-and-Hydrology.1993. 8, pp 59-64.. ABSTRACT The annual value relations are considered of anthropogenic and natural runoff losses in the Kura River basin for the period from 1936 to 1990 characterized by intense economic watershed development. Analyzed are the reasons and estimated are the values of the Kura annual runoff

decrease in the period considered. -Journal summary ACCESSION NUMBER (1086011); 95J-08241

Record 6 of 25 in GEOBASE 1/90-11/97
TITLE The oil resources of Azerbaijan: survey and current developments. AUTHOR Sagers,-M.-J.; Matzko,-J.-R. SOURCE International-Geology-Review.1993. 35(12), pp 1093-1103.. ABSTRACT Azerbaijan, the third-ranking oil-producing former Soviet republic, produced 10.3 million tons of crude in 1993. Output, although slowly dwindling since 1966 as major onshore deposits have been depleted, now accounts for roughly 2.5% of former Soviet production. Reserves, estimated by various sources as ranging from 137 to 960 million tons, have been the focus of considerable interest by Western Oil companies, as the government of Azerbaijan has sought foreign expertise and equipment in the development of promising offshore fields in deeper waters of the Caspian Sea. This paper describes the geologic structure of Azerbaijan's major oil- and gas-bearing regions (Caspian-Kuban, Kura, and Apsheron-Balkhan) and outlines the development history of major fields. -from Authors ACCESSION NUMBER (1082682); 95K-03790
Record 7 of 25 in GEOBASE 1/90-11/97
TITLE Near-surface thermal prospecting: review of processing and interpretation. AUTHOR Khesin,-B.-E.; Eppelbaum,-L.-V. SOURCE Geophysics.1994. 59(5), pp 744-752.. ABSTRACT Temperature measurements at shallow depths (up to 3 m) contain useful information about features of the geological structures; however, the noise caused by seasonal temperature variations and terrain relief may significantly distort the observed temperature field. Therefore, procedures are developed for the calculation and removal of these noise sources. Essential similarities between thermal and magnetic prospecting make it possible to apply to thermal prospecting modifications of the rapid methods of characteristic points and tangents developed for magnetic prospecting. The methods can be used to locate disturbing bodies by their associated temperature anomalies. The interpretation results obtained both on models and polymetallic (Greater Caucasus) and oil and gas (Middle Kura Depression) deposits testify to the accuracy and reliability of these methods. -from Authors ACCESSION NUMBER (1061010); 94T-6217

Record 8 of 25 in GEOBASE 1/90-11/97

TITLE Dynamics of fluvial processes and ecological state of the Samur River Basin. AUTHOR Ibad-zade,-Yu.-A.; Gasanov,-G.-M.; Guliev,-Sh.-Sh. SOURCE Hydrotechnical-Construction.1993. 27(1), pp 9-12.. ORIGINAL SOURCE translated from: Gidrotekhnickeskoe Stroitel'stvo , 1, 1993, pp 18-21 ABSTRACT The hydrotechnical laboratory of the Azerbaijan Research Institute of Hydraulic engineering and Reclamation conducted on-site investigations to determine the dynamics of changes in the geographic, climatic, geomorphologic, hydrologic, and hydromorphologic characteristics of the basins of the Kura, Belokan-chai (Azerbaijan), and Samur (Dagestan) for the purpose of establishing the need to design protective and regulation structures. Topographic, photographic, and aerial photographic data were used widely. As a result of on-site investigations data was obtained for designing protective and regulation structures. Data was also collected making it possible to establish the rates of change, degree of interaction, and interrelation of these processes and to predict the future of the ecological state of the river basin. -from Journal translation ACCESSION NUMBER (1032814); 94J-10915
Record 9 of 25 in GEOBASE 1/90-11/97
TITLE Petrology of Jammu coals, India. AUTHOR Chandra,-D.; Reddy,-R.-R.; Chakrabarti,-N.-C. SOURCE Indian-Journal-of-Earth-Sciences.1993. 20(3-4), pp 153-162.. ABSTRACT A systematic petrological and chemical study of coals from Kura, Kalakot, Metka, Mahogala and Chakkar coalfields of Jammu indicates that, due to the tectonic impact of the Himalayan Orogeny, the coals have attained the high rank-carbonaceous-semi-bituminous class of Seyler's classification. Besides, a gradual increase of rank from SE to NW, i.e., from Chakkar to Kura coalfields, has been observed. The petrological data suggest broad similarity in maceral assemblages among the coals of Jammu. -Authors ACCESSION NUMBER (1038729); 94K-07456
Record 10 of 25 in GEOBASE 1/90-11/97
TITLE

A three-dimensional stationary model of the thermal and thermoelastic fields of the Caucasus. AUTHOR Alexidze,-M.-A.; Gugunava,-G.-E.; Kiria,-D.-K.; Chelidze,-T.-L. SOURCE Tectonophysics.1993. 227(1-4), pp 191-203.. ABSTRACT Three-dimensional geothermal and thermoelastic models of the Caucasus have been produced. Application of the three-dimensional approach to regions as complex as the Caucasus has been justified. The model calculations were made excluding the surface heat flow and could therefore be used to test the validity of the model. The theoretical heat flow agreed well with the experimental model over the Black and Caspian Sea areas and over the whole Rioni-Kura depression. As was expected, areas of young volcanism presented exceptions. Charts of temperature and thermoelastic displacement were plotted for the 'granitic', Conrad and Mohorovicic discontinuities. -Authors ACCESSION NUMBER (1039034); 94K-07246

Record 11 of 25 in GEOBASE 1/90-11/97
TITLE Geology and hydrocarbon prospects of Latvia. AUTHOR Freimanis,-A.; Margulis,-L.; Brangulis,-A.; Kanev,-S.; Pomerantseva,-R. SOURCE Oil-and-Gas-Journal.1993. 91(49), pp 71-74.. ABSTRACT Oil prospects in Latvia are associated with the Baltic syneclise. Latvia occupies about one fourth of that large tectonic depression; zones of oil accumulation continue there from adjacent areas. The oil prospects in separate areas are determined by their position regarding the sources of oil generation - the Gdansk-Kura and Liepaya depressions. The most prospective areas are the Liepaya-Saldus zone of highs and the Pape-Barta trough. -from Authors ACCESSION NUMBER (1033785); 94K-05004
Record 12 of 25 in GEOBASE 1/90-11/97
TITLE Interpretation of stochastic concept in hydrology and hydraulics. AUTHOR Lobanov,-V.-A. EDITORS Kuo,-Jan-Tai; Gwo-Fong-Li SOURCE in: Stochastic hydraulics '92.Proc. IAHR symposium Taipei, 1992. (National Taiwan University, Department of Civil Engineering), 1992, pp 655-662.. ABSTRACT

The purpose of this study is to give a new way for investigating and forecasting complex hydrological and hydraulic porcesses. Its realization includes the following processes, choice of an appropriate concept of time series presentation and the theory, development of methodology and algorithms for the formation of composite process models and forecasting. This methodology has been satisfactorily applied to the analysis of water level records for Kura River at Tbilisi. -Author ACCESSION NUMBER (0994403); 93J-12869

Record 13 of 25 in GEOBASE 1/90-11/97
TITLE More on the landslide at Mingechaurskoe Reservoir. AUTHOR Bairamov,-R.-I.; Veli-Zade,-T.-Ya.; Molokov,-L.-A. SOURCE Hydrotechnical-Construction.1992. 26(4), pp 251-255.. ORIGINAL SOURCE translated from: Gidroteknicheskoe Stroitel'stvo, 4, 1992, pp 38-41 ABSTRACT Information on landslides in the area of the Mingechaurskoe Reservoir in Azerbaijan is presented. Deformations on the right-bank slope of the Kura Valley are not a new occurrence, but any further movement of the affected rock mass may damage the intakes of the Azerbaijan State Regional Electrical Generating Station, the main source of power in the Transcaucasus, and the Verkhne-Karabak Irrigation Canal, which supplies a large area of irrigated land in Azerbaijan -D.W.Taylor ACCESSION NUMBER (0988634); 93J-11292
Record 14 of 25 in GEOBASE 1/90-11/97
TITLE Legume seedling feeding preferences of adult Sitona hispidulus (F.) (Coleoptera: Curculionidae). AUTHOR Barratt,-B.-I.-P.; Byers,-R.-A. SOURCE Environmental-Entomology.1992. 21(1), pp 103-106.. ABSTRACT Seedlings of a range of cultivars of white clover Trifolium repens, alfalfa Medicago sativa, red clover Trifolium pratense; Lotus spp. and crown vetch Coronilla varia were transplanted in the cotyledon stage into trays in a complete randomized block design. Adult clover root curculio were added at a rate of one weevil per seedling. White clover 'Ladino' was the most preferred species, followed by alfalfa 'WL 318' and two red clover cultivars, 'Kura' and 'Arlington'. Lotus spp. and crown vetch were preferred least. Defoliation levels ranged from 32-93% after 6 to 7 d in whole seedling experiments and 11-46% aftr 4 h in a leaf-disc experiment. -from Authors ACCESSION NUMBER (0955330); 93L-05456

Record 15 of 25 in GEOBASE 1/90-11/97

TITLE Microphotometric analysis of soil moisture content from remote sensing imagery. AUTHOR Azizov,-B.-M.; Mamedov,-R.-G.; Sultanova,-N.-B.; Gerayzade,-A.-P. SOURCE Mapping-Sciences-and-Remote-Sensing.1991. 28(4), pp 287-293.. ORIGINAL SOURCE translated from: Aerokosmicheskiye metody v pochvovedenii i ikh ispol'zovaniye v sel'skom khozyaystve: sbornik nauchnykh trudov, ed G.V.Dobrovol'skiy & V.L.Andronikov, (Nauka, Moscow), 1990, pp 183-189 ABSTRACT A method is outlined for the determination of soil moisture content from remote sensing imagery, with consideration of its rapid fluctuation based on meteorological events and other factors (eg humus content and character of vegetation). The paper is devoted to soil moisture detection in the visible, reflected-infrared, and thermal-infrared portions of the electromagnetic spectrum in irrigated portions of the Kura-Araks lowland in Soviet Transcaucasia, based on optical density measurements from image negatives, for the most part. -Journal summary ACCESSION NUMBER (0911983); 92J-08417
Record 16 of 25 in GEOBASE 1/90-11/97
TITLE Some relationships in the formation of protruding deltas on an open sea coast. AUTHOR Mikhailov,-V.-N.; Mikhailova,-M.-V. SOURCE Vestnik,-Moskovskogo-Universiteta,-Seriya-Geografiya.1991. 5, pp 36-44.. ABSTRACT Examines the 'new' delta of the Terek, the 'old' and 'new' deltas of the Sulak, the delta of the Kiliyskiy branch of the Dunay and the deltas of the Rioni, Kura, Amudar'ya, Mississippi and Huanghe. Protruding deltas are formed in two ways: by gradual evolution, and by a series of 'jumps'. Close dependences were revealed between the length of the delta, the area of the delta and the volume of the alluvial fan, but these dependences are different for different deltas. Conclusions were reached about the balance of sediments in the mouth of the river. -P.Cooke ACCESSION NUMBER (0912632); 92J-06207
Record 17 of 25 in GEOBASE 1/90-11/97
TITLE The Arabian continental alkali basalt province: part II. Evolution of Harrats Khaybar, Ithnayn, and

Kura, Kingdom of Saudi Arabia. AUTHOR Camp,-V.-E.; Roobol,-M.-J.; Hooper,-P.-R. SOURCE Geological-Society-of-America-Bulletin.1991. 103(3), pp 363-391.. ABSTRACT Three coalesced basaltic lava fields, Harrats Khaybar, Ithnayn, and Kura, constitute the largest contiguous area of Cenozoic basalt in Saudi Arabia, similar in extent (20 564 km "SUP 2" ) and volume (1850 km "SUP 3" ) to Harrat Rahat, which is situated only 25 km to the south. Harrat Kura, with an age range from about 11 to 5 Ma, is the oldest of these harrats; it contains a single stratigraphic unit, the Kura basalt, primarily composed of alkali olivine basalt (AOB) with subordinant basanite and hawaiite and a single cluster of four phonolite domes. In contrast, Harrats Khaybar (5 Ma to Present) and Ithnayn (3 Ma to Present) are composed of more mildly alkaline basalt types. The two oldest units on Harrat Khaybar, the Jarad and Mukrash basalts, are dominated by dictytaxitic-to-ophitic olivine transitional basalt (OTB) flows, which were extruded primarily from major arterial lava tubes to form unusual morphological features. Whole-rock chemistry suggests that even the most primitive basalts are not primary magmas, but rather fractionated melts derived from primary magmas of variable melt fractions generated at differing mantle depths. Chemical and petrographic data suggest that open-system magma recharge was an important process in the high- level magma chamber beneath Harrat Khaybar. The north-trending volcanic axes of Harrats Rahat, Khaybar, and Ithnayn form a single, 600-km-long linear vent system, designated the Makkah-Madinah-Nafud (MMN) volcanic line. The three transitional-to-mildly alkaline harrats extruded from this volcanic line differ from most Arabian harrats, which like Harrat Kura to the west, are significantly more undersaturated. -from Authors ACCESSION NUMBER (0870477); 91K-09120

Record 18 of 25 in GEOBASE 1/90-11/97
ORIGINAL TITLE About the soils of Priterskii sandy area. AUTHOR Golovlev,-A.-A.; Golovleva,-N.-M.; Sribnyi,-A.-Ya. SOURCE Problemy-Osvoeniya-Pustyn',-Akademiya-Nauk-Turkmenskoi-SSR.1990. 3, pp 22-28.. ABSTRACT Arid type of soil formation prevails within the limits of Priterskii sandy area. Light-chestnut sandy and sandy loam soils are being formed on sandy deposits of the ancient Kura river as the result of this process. Specific morphologic and physico-chemical properties of the soils indicate their provincial belonging. -English summary ACCESSION NUMBER (0842207); 91J-00475
Record 19 of 25 in GEOBASE 1/90-11/97
TITLE

National programmes for deep wells and first results. ORIGINAL TITLE Nationale Programme zum Niederbringen ubertiefer Bohrungen und ihre ersten Ergebnisse. AUTHOR Kirjuchin,-L.-G.; Hetzer,-H. SOURCE Zeitschrift-fur-Angewandte-Geologie.1989. 35(10-11), pp 325-332.. ABSTRACT The deep well on the peninsula Kola in the north of the USSR brought new knowledge on structure of the earth. Contrary to the suspected profile, where a 'granite layer' was suspected at a depth of 5 km and below the Conrad-discontinuity a 'basalt-layer' at a depth of about 7 km, the well only sank through a Proterozoic-Archaic complex of differentiated composition up to 12 km. The well Saatly in the Kura basis did not reach the 'granite layer' too. Interpreting the data a new model for the structure of the earth's crust has to be constructed. Further activities to drill overdeep wells exist in the USA, in Sweden and in the FRG. -English summary ACCESSION NUMBER (0801768); 90K-02659

Record 20 of 25 in GEOBASE 1/90-11/97
ORIGINAL TITLE Dynamics of the evaporation loss from reservoirs of the Kura-Araks basin, USSR. AUTHOR Golubev,-V.-S.; Tsytsenko,-K.-V.; Solyanik,-N.-L. SOURCE Meteorologiya-i-Gidrologiya.1989. 6, pp 103-109.. ABSTRACT On the basis of observation data from the evaporimeter network a quantitative estimate of the evaporation loss from the Transcaucasian reservoirs is made. For this purpose a method of the retrieval of gaps in data series taking into account the degree of reservoir shadiness has been developed. The evaporation loss value averaged for 1970-1985 was 0.73 km "SUP 3" /yr. In spite of a marked increase in the total area of reservoirs there has been a negative trend in annual sums of evaporation in the region during the last three decades. -from English summary ACCESSION NUMBER (0803969); 90J-04776
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GEOBASE 1997/12-1998/11 GEOBASE 1/90-11/97 GEOBASE 1980-1989
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Search History

#1 inguri (9 records)

#2 aragvi (0 records)

#3 rioni (5 records)
TITLE: Stress-relief deformation in the epicentral zone of the 1991 Racha earthquake (southern slope of the Greater Caucasus).

AUTHOR: Belousov,-T.P.; Mukhamediyev-,Sh.A.; Chichagov,-V.P.

SOURCE: Transactions-Doklady,-Russian-Academy-of-Sciences:-Earth-Science-Sections. 1996. 339/8, 47-53.

ORIGINAL SOURCE: translated from: Doklady Rossiyskoy Akademii Nauk, 1993, 336/6, (775-779)

ABSTRACT: An earthquake with a magnitude of between 6.9 and 7.1 that occurred in northern Georgia during the spring of 1991 had a destructive effect on the relief of the southern slope of the Greater Caucasus range. Seismic waves had their most pronounced effect in the arc-shaped Racha Range, south of the sublatitudinal segments of the Dzhordzhora and Rioni river valleys. In this area, the underground quake and seismogravitational dislocations of various types gave rise to a narrow zone of seismic cracks, extending nearly 40 km WNW from the epicenter of the earthquake and tracing at the surface a system of active faults underneath. It is concluded that the dynamic situation is correlated with the nature of the post-earthquake deformations in the zone of the Racha earthquake and its aftershocks.

ACCESSION NUMBER: (1199449); 97K-99999

TITLE: A three-dimensional stationary model of the thermal and thermoelastic fields of the Caucasus.

AUTHOR: Alexidze,-M.-A.; Gugunava,-G.-E.; Kiria,-D.-K.; Chelidze,-T.-L.

SOURCE: Tectonophysics. 1993. 227(1-4), pp 191-203.

ABSTRACT: Three-dimensional geothermal and thermoelastic models of the Caucasus have been produced. Application of the three-dimensional approach to regions as complex as the Caucasus has been justified. The model calculations were made excluding the surface heat flow and could therefore be used to test the validity of the model. The theoretical heat flow agreed well with the experimental model over the Black and Caspian Sea areas and over the whole Rioni-Kura depression. As was expected, areas of young volcanism presented exceptions. Charts of temperature and thermoelastic displacement were plotted for the 'granitic', Conrad and Mohorovicic discontinuities. -Authors

ACCESSION NUMBER: (1039034); 94K-07246
TITLE: Some relationships in the formation of protruding deltas on an open sea coast.

AUTHOR: Mikhailov,-V.-N.; Mikhailova,-M.-V.

SOURCE: Vestnik,-Moskovskogo-Universiteta,-Seriya-Geografiya. 1991. 5, pp 36-44.

ABSTRACT: Examines the 'new' delta of the Terek, the 'old' and 'new' deltas of the Sulak, the delta of the Kiliyskiy branch of the Dunay and the deltas of the Rioni, Kura, Amudar'ya, Mississippi and Huanghe. Protruding deltas are formed in two ways: by gradual evolution, and by a series of 'jumps'. Close dependences were revealed between the length of the delta, the area of the delta and the volume of the alluvial fan, but these dependences are different for different deltas. Conclusions were reached about the balance of sediments in the mouth of the river. -P.Cooke

ACCESSION NUMBER: (0912632); 92J-06207
ORIGINAL TITLE: Mountain water reservoirs influence on sea coasts development.

AUTHOR: Makatsaria,-A.-P.

SOURCE: Geomorfologiya. 1989. 3, pp 32-36.

ABSTRACT: The rivers have been divided into groups according to the significance of the flow control by the reservoirs. Most influenced appear the coasts which are fed by rivers devoid of deltas. In a short time after reservoirs construction the marine erosion removes alluvium from the river mouth and extends along the sea coast. A new delta of the Rioni River is taken as a reference case of the terrestrial water management (including reservoirs construction and flow diversion) influence on the delta formation. -from English summary

ACCESSION NUMBER: (0806154); 90J-03334

TITLE: The Caucasus: an actual example of the initial stages of continental collision.

AUTHOR: Philip,-H.; Cisternas,-A.; Gvishiani,-A.; Gorshkov,-A.

SOURCE: Tectonophysics. 1989. 161(1-2), pp 1-21.

ABSTRACT: The analysis of satellite photos together with topographical and geological maps shows that the Great Caucasus is bisected by a NNE-trending sinistral strike-slip fault zone. The western Great Caucasus is thrusted to the south over the Rioni basin; while, on the other hand, its northern flank is a monocline that descends gently into the Russian Platform. Active volcanism is present from Elbruz to Kazbeg. The eastern Great Caucasus is limited by thrusts to the north and to the south, and intermediate structures are disposed in a fan-like shape. No recent volcanism is observed. The eastern limit of the chain is a NNW-trending dextral strike-slip fault zone. The strike-slip faults bordering the eastern Caucasus may be seen as the limits of a plastic wedge in front of the Arabian Plate, at an early stage of continental collision. -from Authors

ACCESSION NUMBER: (0779286); 89K-08486