Perspectives and Preliminary Results of Archaeological Investigations of the South-Western Altai (the Ukok Plateau)

1995 ◽  
pp. 215-222 ◽  
Author(s):  
V. I. Molodin
Keyword(s):  
The South ◽  
Preliminary Results ◽  
Ukok Plateau

Preliminary analysis of the spectral content of P and S waves from local earthquakes in the Garm, Tadjikistan region

1978 ◽  
Vol 68 (4) ◽  
pp. 949-971
Author(s):  
T. G. Rautian ◽  
V. I. Khalturin ◽  
V. G. Martynov ◽  
P. Molnar
Keyword(s):  
Seismic Moment ◽  
Tien Shan ◽  
Wave Spectra ◽  
The South ◽  
Spectral Content ◽  
Preliminary Results ◽  
Local Earthquakes ◽  
Calculated Stress ◽  
Stress Drops ◽  
Lower Frequencies

abstract This paper reports preliminary results of an analysis of the spectral content of seismic waves from over 1,000 local earthquakes in the Garm, Tadjikistan region. Very low values of Q (∼100) were obtained for the Mesozoic and Cenozoic sedimentary rocks of the Peter I Range compared with those in the crystalline rock of the South Tien Shan (Q ≳ 500). For events with the same low frequency spectra, earthquakes in the South Tien Shan are recorded with more energy at higher frequencies than earthquakes in the Peter I Range, at least in part, because of the greater attenuation of the sedimentary rock in the latter region. There is a wide variety of spectra radiated by earthquakes throughout the Garm region, but a marked difference between spectra radiated by earthquakes from these two regions is not apparent. Nevertheless although calculated stress drops of earthquakes appear to vary considerably throughout the region, there appears to be a dependence on the type of rock in which the earthquakes occurred. The variation in calculated stress drops, however, is greater within either region than between the two. For most regions and for most of the range of seismic moments studied the shape of the spectrum is relatively independent of seismic moment. Consequently, calculated stress drops increase with seismic moment, with the functional dependence varying from region to region. For the largest events, the spectrum shifts to lower frequencies with increasing moment and stress drops become essentially independent of moment. Preliminary results suggest that the stress drops are not detectably different for earthquakes with thrust or normal faulting fault-plane solutions. A limited amount of data are consistent with a change in spectral content and stress drop of earthquakes in the vicinity of and before stronger earthquakes but a clear, consistent pattern is not yet evident. Toward high frequencies, S-wave spectra both begin to decrease at lower frequencies and seem to decrease more rapidly than P-wave spectra, in contrast with predictions of published dislocation models of earthquakes.

scholarly journals Preliminary results of mapping in the Palaeozoic and Mesozoic sediments of Scoresby Land and Jameson Land

1970 ◽  
Vol 30 ◽  
pp. 17-30
Author(s):  
R.G Bromley ◽  
J Bruun-Petersen ◽  
K Perch-Nielsen
Keyword(s):  
Sedimentary Basin ◽  
Field Work ◽  
Trace Fossils ◽  
Summer Season ◽  
Heavy Mineral ◽  
The South ◽  
Preliminary Results ◽  
Mineral Assemblages ◽  
Main Fault ◽  
Geological Map

In the 1969 summer season mapping was concentrated in those areas of southern Scoresby Land and northern Jameson Land which had not been visited in 1968 (see Birkelund & Perch-Nielsen, 1969). Mapping was extended westward to the main fault of the post-Caledonian sedimentary basin against the Stauning Alper and to the south as far as 71°10'. The field work was carried out by R. G. Bromley, L. and C. Malmros, K. Perch Nielsen, J. Bruun-Petersen, C. Heinberg, and E. Hjelmar. The preliminary results of the mapping are given in this report together with a geological map at a scale of 1:300 000, compiled from the existing maps (Aellen, in press; Bearth & Wenk, 1959; Callomon, in press; Triimpy & Grasmiick; 1969) and our own observations. Special attention was given to trace fossils by. R. G. Bromley and the heavy mineral assemblages in the Mesozoic sediments by J. Bruun-Petersen.

scholarly journals Uranium-bearing metasediment and granite in the Tasermiut area, South Greenland

1981 ◽  
Vol 105 ◽  
pp. 47-51
Author(s):  
B.L Nielsen ◽  
T Tukiainen
Keyword(s):  
Stream Sediments ◽  
Uranium Deposits ◽  
The South ◽  
Planning Stage ◽  
Preliminary Results ◽  
Bay Area ◽  
Vein Type ◽  
Uranium Exploration ◽  
Stream Waters

Regional exploration for uranium was carried out in South Greenland in 1979 and 1980. From the planning stage the area between the fjords Tasermiut and Søndre Sermilik (fig. 16) was considered a favourable target beeause uranium deposits from geological environments of similar age, strueture and lithology are known, e.g. the Makkovik Bay area in Labrador (Gandhi et al., 1969; McMillan, 1976). The deposits sought were mainly pegmatitic or vein type deposits related to a Proterozoie unconformity (Nielsen, 1980). During the South Greenland uranium exploration project the area was covered in 1979 by a regional reconnaissance gamma-spectrometric survey and by drainage geochemistry (stream sediments and stream waters). Several areas of anomalous radioactivity were recordcd (Armour-Brown et al.) 1980), and an the basis af this and short field visits in 1979 ir was decided to undertake a more systematic follow-up in 1980. The preliminary results af this work are reported below.

scholarly journals Geological, geochemical and ecological research in the Ilímaussaq region, South Greenland

1978 ◽  
Vol 90 ◽  
pp. 67-73
Author(s):  
J Rose-Hansen ◽  
H Sørensen
Keyword(s):  
Environmental Geochemistry ◽  
Field Work ◽  
Ecological Research ◽  
The South ◽  
The West ◽  
Preliminary Results ◽  
South Eastern ◽  
Diamond Drilling ◽  
Alkaline Intrusion ◽  
Laboratory Investigations

In 1977 field work was concerned with the lujavrites and kakortokites of the south-eastern part of the Ilimaussaq alkaline intrusion (see Andersen & Bohse, this report), pegmatites and veins within the intrusion, the Narssaq intrusion situated to the west of the Ilimaussaq intrusion, and the environmental geochemistry and the ecology of the Narssaq region. Preliminary results of the field work and of some of the laboratory investigations are reported below. It should also be mentioned that a diamond drilling programme was carried out in the uraniferous rocks of the Kvanefjeld area in the northern part of the Ilimaussaq intrusion (see Nyegaard, this report).

Preliminary results on the radiometric age of the Hercynian metamorphism in the South-Alpine basement of the Eastern Alps

1981 ◽  
Vol 1980 (12) ◽  
pp. 707-718
Author(s):  
A. Del Moro ◽  
F. P. Sassi ◽  
G. Zirpoli
Keyword(s):  
Eastern Alps ◽  
The South ◽  
Preliminary Results

Preliminary results of 2020 archaeological studies of the monuments of Kazakh Altai

2020 ◽  
pp. 55-66
Author(s):  
Aidos Erbulatovich Chotbaev
Keyword(s):  
Scientific Discourse ◽  
Third Century ◽  
The South ◽  
Burial Site ◽  
Ancient Population ◽  
Preliminary Results ◽  
Archaeological Material ◽  
Archaeological Science ◽  
Transitional Time ◽  
Burial Rite

Archaeological studies in the context of scientific interpretation were carried out in the region back in pre-revolutionary times and continue to the present. The research that have continued now for a third century led to accumulation of a rich historiographical foundation of archaeological material and solid literature dedicated to various aspects of life of the region’s ancient population. The first research have begun in 1960 by the South Altai archaeological expedition. S. S. Sorokin performed reconnaissance explorations across Bukhtarma from Katon-Karagai to the Kurtu River. As a result of these surveys 15 monuments were discovered., one of which is the Kurtu burial site. After the research of S. S. Sorokin, the works on the site have terminated, and half a century later, in 2019, they were resumed. One of the outcome of the conducted research consists in specification of the topo-landscape situations of Tautekeli necropolis; this led to substantiated division of Kurtu necropolis previously studied by S. S. Sorokin, which included the group Tautekeli. The historical name of the necropolis Topkayin was introduced into the scientific discourse. Until the present day, it was a known fact for the archaeological science that Topkayin and Tautekeli burial sites consist only of funerary-memorial complexes of the beginning of Nomadic era, i.e., the Indo-Skythians period. The conducted archeological explorations resulted in acquisition of the material that chronologically relate to the transitional time from the Mayemer period to the Pazyryk period. The unique materials that contain knowledge on the burial rite of the population, armament, horse munition and burials of the horses themselves, were obtained.

PRELIMINARY RESULTS OF THE SURVEY OF THE LITTORAL ZONE OF THE SOUTH KAMCHATKA NATURAL PARK

2021 ◽  
Author(s):  
D.D. Danilin ◽  
L.L. Budnikova ◽  
S.I. Sakharovsky ◽  
A.M. Tokranov ◽  
G.G. Zhigadlova ◽  
...  
Keyword(s):  
Littoral Zone ◽  
The South ◽  
Preliminary Results ◽  
Natural Park
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