scholarly journals The main structural reorganization of the South Baikal Basin: Early Pliocene initiation of strong tectonic deformations and the Lena runoff from Lake Baikal

Author(s):  
S. Rasskazov ◽  
◽  
◽  
A. Al Hamud ◽  
E. Kononov ◽  
...  
2017 ◽  
Vol S36 ◽  
pp. 3-10
Author(s):  
P. G. Dyadkov ◽  
◽  
L. V. Tsibizov ◽  
M. P. Kozlova ◽  
A. V. Levicheva ◽  
...  

2018 ◽  
Vol 932 (2) ◽  
pp. 22-35
Author(s):  
S.B. Kuzmin ◽  
D.A. Lopatkin

Mapping of hazardous geomorphological processes in the Baikal Region and its ecological and geomorphological zoning was carried out on the basis of the improved method, developed earlier by the authors. Baikal Region includes the subjects of the Russian Federation in the South Siberia and Republic of Mongolia within the boundaries of the Lake Baikal Basin. The basis of zoning are


2013 ◽  
Vol 4 (2) ◽  
pp. 135-168 ◽  
Author(s):  
S.V. Rasskazov ◽  
T.A. Yasnygina ◽  
I.S. Chuvashova ◽  
E.A. Mikheeva ◽  
S.V. Snopkov

Atmosphere ◽  
2018 ◽  
Vol 9 (5) ◽  
pp. 176 ◽  
Author(s):  
Elizaveta М. Tyumentseva ◽  
Galina F. Orel

2019 ◽  
Vol 10 (1) ◽  
pp. 147-166
Author(s):  
A. A. Dobrynina ◽  
P. A. Predein ◽  
V. A. Sankov ◽  
Ts. A. Tubanov ◽  
D. P.-D. Sanzhieva ◽  
...  

Our detailed study of the crust and upper mantle of the South Baikal basin focused on seismic coda and seismic S-waves attenuation and estimated seismic quality factor (QS and QC), frequency parameter (n), attenuation coefficient (δ), total attenuation (QT), and the ratio of two components the total attenuation: intrinsic attenuation (Qi), and attenuation due to scattering caused by the inhomogeneities of the medium (QSC). We calculated the sizes of inhomogeneities revealed in the block medium, which put their effect on the attenuation of seismic waves in different frequency ranges. The seismic wave attenuation field was analyzed in comparison with the geological and geophysical characteristics of the medium, and a direct relationship was established between attenuation, composition and active processes in the crust and upper mantle of the studied area. According to the estimated intrinsic attenuation (Qi) and scattering attenuation (QSC) contributions into the total attenuation, intrinsic attenuation is generally dominant in the studied area, while the QSC component increases in the areas of large active faults.


Author(s):  
Mikhail I. Kuzmin ◽  
Vladimir V. Yarmolyuk ◽  
Eugene B. Karabanov ◽  
Takayoshi Kawai ◽  
Alexander A. Prokopenko ◽  
...  

Fisheries ◽  
2021 ◽  
Vol 2021 (6) ◽  
pp. 80-90
Author(s):  
Alexander Sukhodolov ◽  
Pavel Anoshko ◽  
Yakov Sukhodolov ◽  
Alina Kolesnikova

The article considers eco-economic aspects of using the fishing capacity of the basin of South Baikal in the framework of the development of tourism of the coastal territory within Slyudyansky Municipal District of Irkutsk Oblast and within the entire southern Baikal Region. The article proposes to more strongly focus on developing sport and recreational fishing in this most developed area of Lake Baikal. The eco-economic and legal analysis carried out by the authors allows them to conclude that the traditional regulation of the stock of omul in Baikal by determining the total allowable catches and quotas is not effective enough, since it has led to the prohibition of not only industrial but also limitation of sport and recreational fishing for omul. At the same time, there is no reliable data that recreational fishing along the southern coast of Baikal is the reason for the decrease in the total stocks of omul in Baikal. On the contrary, the South Baikal fishing area can become the basis for a more dynamic development of the tourism industry in the region, including such types of it as cognitive tourism, ecological tourism and sports and recreational one. Moreover, it is the South Baikal fishing area and the coastal territory of Slyudyansky Municipal District that can become a testing site for developing more optimal (considering the specifics of various areas of Lake Baikal) ecological approaches to the regulation, rational use and reproduction of the stock of omul in Baikal for the purposes of sport and recreational fishing at Lake Baikal, as well as development of an environmentally friendly tourism industry in the region. The authors propose to review the strategy of fishery development of the stocks of omul at Lake Baikal and remove restrictions on recreational fishing, accompanying this with organizational and legal measures that allow obtaining reliable statistical data on catches. Precisely in this most economically developed area of Lake Baikal it is advisable to practice the organizational and legal mechanisms for the environmentally friendly development of tourist and recreational activities based on the available water bioresources of the unique lake.


2021 ◽  
Author(s):  
Irina Chuvashova ◽  
Sergei Rasskazov ◽  
Tatiana Yasnygina ◽  
Youseph Ailow ◽  
Elena Saranina ◽  
...  

<p>We present results of detail geochemical study of 18–12 Ma volcanic rocks from the Kamar-Stanovoy Zone of Hot Transtension (KSZHT), located in the central Baikal Rift System (BRS), and older pseudotachylytes from the Main Sayan Fault (MSF). These rocks designate geochemically distinguished from the OIB sources that are referred to the Slyudyanka zone of paleocollision occurred between the Khamardaban terrane and Siberian paleocontinent about 488 Ma ago. We define crustal and mantle signatures (with and without garnet, respectively) for the KSZHT volcanic rocks and crustal ones for the MSF basic pseudotachylytes. The signatures are indicative for tracing complementary relations between layers of the crust–mantle transition (CMT). We infer that the KSZHT volcanic activities accompanied rifting of a paleocontinental margin but got quiescent after a structural separation of the South Baikal Basin from the Tunka Valley, when the former had been sufficiently extended and subsided in contrast to the latter, which had been notably compressed and uplifted. From geological evidence and a detail seismic tomography model, we suggest that the KSZHT crust–mantle magmatic processes were due to delamination of a thickened root part of the South Baikal Orogen that preceded rifting in the South Baikal Basin area in the Late Cretaceous and Paleogene. Volcanic rocks of the past 17 Ma from the southwestern BRS denoted similar CMT sources and delamination processes beneath the East Hangay orogen and adjacent Orkhon-Selenga saddle. In the central and southwestern BRS, the CMT sources marked mutually overlapping deformational fields related to Indo-Asian convergence and pool-to-axis forces of the Japan-Baikal geodynamic corridor.</p><p>This work is supported by the RSF grant 18-77-10027.</p>


Author(s):  
Sergei Rasskazov ◽  
Aigul Ilyasova ◽  
Sergei Bornyakov ◽  
Irina Chuvashova ◽  
Eugene Chebykin

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