scholarly journals PALEOGEOGRAPHY OF THE SOUTH SAKHALIN MARINE COAST IN THE SUBBOREAL PERIOD OF HOLOCENE

Author(s):  
Yu.A. Mikishin ◽  
V.S. Pushkar ◽  
I.G. Gvozdeva
Keyword(s):  
2017 ◽  
Vol 72 (1) ◽  
pp. 63-74
Author(s):  
T. A. Kiryukhina ◽  
S. I. Bordunov ◽  
A. A. Solov’eva

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
M. V. Rodkin ◽  
I. N. Tikhonov

Seismic process is usually considered as an example of occurrence of the regime of self-organizing criticality (SOC). A model of seismic regime as an assemblage of randomly developing episodes of avalanche-like relaxation, occurring at a set of metastable subsystems, can be the alternative of such consideration. The model is defined by two parameters characterizing the scaling hierarchical structure of the geophysical medium and the degree of metastability of subsystems of this medium. In the assemblage, these two parameters define a modelb-value. An advantage of such approach consists in a clear physical sense of parameters of the model. The application of the model for parameterization of the seismic regime of the south part of Sakhalin Island is considered. The models of space changeability of the scaling parameter and of temporal changeability of the parameter of metastability are constructed. The anomalous increase of the parameter of metastability was found in connection with the Gornozavodsk and Nevelsk earthquakes. At the present time, high values of this parameter occur in the area of the Poyasok Isthmus. This finding is examined in comparison with other indications of an increase in probability of occurrence of a strong earthquake in the South Sakhalin region.


2017 ◽  
Vol 1 (1) ◽  
pp. 30-36 ◽  
Author(s):  
P.A. Kamenev ◽  
◽  
O.M. Usoltseva ◽  
P.A. Tsoi ◽  
V.N. Semenov ◽  
...  

Author(s):  
В.Д. ХУДИК ◽  
Ю.Д. ЗАХАРОВ

Приведены результаты изучения остатков фаун двустворчатых моллюсков из миоценовых отложений Южного Сахалина. Их анализ позволил выделить три бореальных комплекса моллюсков: невельский, раннечеховский и курасийский, фиксирующие периоды похолодания климата в миоцене региона. Изучение неогеновых представителей родов Lucinoma и Mya позволило обозначить среди них ряд таксонов, имеющих стратиграфическое значение. Установленное присутствие тепловодных двустворок в фаунах позднечеховского времени Южного Сахалина, очевидно, отражает собой начальный этап тенденции нарастающего потепления климата в миоцене региона с климатическим оптимумом в верхнедуйско-сертунайское время. Высказывается следующее мнение: неустойчивые климатические условия в позднем палеогене – раннем неогене северной части Япономорского региона могли быть основной причиной возникновения здесь одного из мощных центров эволюции морских малакофаун бореальных районов северной Пацифики. The results on the studying of the faunae of bivalve mollusks remains from miocene deposits of the South Sakhalin are presented. The analysis of the last ones allowed distinguishing the following three boreal assemblages of mollusks: Nevelskiy, early Chekhovskiy and Kurasiiskiy, recording the period of climatic cooling in miocene of the region. Studying of Neogene representatives of Lucinoma and Mya generas allowed identifying some taxa among them which have stratigraphic significance. The detected presence of warm water bivalves in the faunae of the late Chekhovsky time of the South Sakhalin appears to reflect the initial stage of the tendency of the intensifying climate warming happened during miocene, with climatic optimum during the Verkhneduysky – Sertunaysky times. An opinion is expressed that the unstable climatic conditions in the northern part of the Japan Sea region during late Paleogene – early Neogene could have been the main reason for originating of one of the high-potential centers of evolution of the marine malacofaunae of boreal regions of the North Pacific.


Atomic Energy ◽  
2012 ◽  
Vol 111 (3) ◽  
pp. 209-213
Author(s):  
V. S. Kosykh ◽  
V. P. Martynenko ◽  
E. G. Tertyshnik ◽  
F. A. Andreev

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