Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan)
Збережено в:
| Опубліковано в: : | Геофизический журнал |
|---|---|
| Дата: | 2010 |
| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут геофізики ім. С.I. Субботіна НАН України
2010
|
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/101635 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) / A. Kostuk, S. Yunga // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 71-72. — Бібліогр.: 5 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-101635 |
|---|---|
| record_format |
dspace |
| spelling |
Kostuk, A. Yunga, S. 2016-06-05T20:16:46Z 2016-06-05T20:16:46Z 2010 Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) / A. Kostuk, S. Yunga // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 71-72. — Бібліогр.: 5 назв. — англ. 0203-3100 https://nasplib.isofts.kiev.ua/handle/123456789/101635 This work was partially supported by the Russian Foundation for Basic Research RFBR 09-05-00687. en Інститут геофізики ім. С.I. Субботіна НАН України Геофизический журнал Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) |
| spellingShingle |
Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) Kostuk, A. Yunga, S. |
| title_short |
Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) |
| title_full |
Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) |
| title_fullStr |
Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) |
| title_full_unstemmed |
Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) |
| title_sort |
comparison results of geodetic and seismic assessment of the earth's crust deformation process (by example of the tien shan) |
| author |
Kostuk, A. Yunga, S. |
| author_facet |
Kostuk, A. Yunga, S. |
| publishDate |
2010 |
| language |
English |
| container_title |
Геофизический журнал |
| publisher |
Інститут геофізики ім. С.I. Субботіна НАН України |
| format |
Article |
| issn |
0203-3100 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/101635 |
| citation_txt |
Comparison results of geodetic and seismic assessment of the Earth's crust deformation process (by example of the Tien Shan) / A. Kostuk, S. Yunga // Геофизический журнал. — 2010. — Т. 32, № 4. — С. 71-72. — Бібліогр.: 5 назв. — англ. |
| work_keys_str_mv |
AT kostuka comparisonresultsofgeodeticandseismicassessmentoftheearthscrustdeformationprocessbyexampleofthetienshan AT yungas comparisonresultsofgeodeticandseismicassessmentoftheearthscrustdeformationprocessbyexampleofthetienshan |
| first_indexed |
2025-11-24T16:28:11Z |
| last_indexed |
2025-11-24T16:28:11Z |
| _version_ |
1850485853214736384 |
| fulltext |
���������
���
���������������������� 4�
��� ��!"#�$%&'�("�%()�#*+#�' #(&"�&��&,#��-�%()� �)#..'(/
Comparison results of geodetic and seismic assessment
of the Earth's crust deformation process
(by example of the Tien Shan)
A. Kostuk1, S. Yunga2, 2010
1Research Station, RAS, Bishkek, Kyrgyzstan
kostuk@gdirc.ru
2Institute of Physics of the Earth, RAS, Moscow, Russia
syunga@ifz.ru
Presence of significant heterogeneities in defor-
mation field of the Tien Shan emphasizes nonunifor-
mity of crust movements. Applying of different me-
thods allows more accurate estimation of the defor-
mation state in the region. At the same time, using
few data sources can be very helpful in the results
verification. Features of geophysical methods not al-
ways allow assessment of crust condition in some
zones of the studied areas, but use of complex ap-
proach can help to expand an information set.
In the present paper, we have attempted to esti-
mate the deformation state of the Tien Shan with
the help of two different methods and the obtained
results comparison. Both seismological data [Kos-
tuk, 2008] and GPS observations results [Zubovich
et al., 2007; Kostuk et al., 2010] were involved as
data sources. In the process of the seismotectonic
deformation (seismic strain release) research, three
deformation regimes — trust, transpression, and
trust-vertical regime — were determined for the Nor-
thern Tien Shan territory. The Lode-Nadai coefficient
analysis indicates compression and shear strain in
the most part of the studied territory and tension state
only in minor parts of the crust, while the seismotec-
tonic deformation rate intensity is 2 10 9 year 1.
Calculation of the contraction\extension axes
direction based on GPS data showed that crust con-
traction in the region in general occurs in north-north-
western direction, with small changes from zone to
zone. It was defined that deformation field is quite
heterogeneous; areas of high contraction rate and
maximum shear strain rate were marked out. Some
small areas of dilatation were localized. Deforma-
tion rate intensity was estimated according to GPS
data and was 2 10 8 year 1.
Comparison of results of seismotectonic analy-
sis and GPS data indicated that there is coinci-
dence in the axes directions and deformation re-
gimes. At the same time, despite the similarity of
tendencies of deformation regimes, the deformation
rate intensity by GPS is by a factor of ten larger
than the siesmotectonic deformation rate intensity
that conforms to the results of other researches
dedicated to the other regions [Zobin, 1987; Radzi-
minovitch et al., 2006].
In so doing, comparison of the contraction axes
azimuths by GPS and seismological data showed
significant concordance. In particular cases, there
was determined almost complete concordance of
directions, while in other cases marked difference
took place. Azimuth according to GPS made 356°
(rms=14.5°), and by the earthquake moment ten-
sor solution data was 353 (rms=14.5°). Conside-
ring the root mean square deviation we could state
that different methods provided the same estima-
tion of the contraction direction azimuth. At the same
time, average deviation between contraction axes
by two different methods in each point was 14.5 .
Thus, a considerable predomination of the north-
north-western direction was noticed. Obtained re-
sults were confirmed by neotectonic structural grain,
near-latitudinal trends of ranges and basins, reverse
and thrust faults of the same orientation.
Additional estimation of the contraction axes di-
rections the territory of California (USA) and island
Honshu (Japan) showed similar results. Thus, the
azimuth for California by GPS made up 40° (rms=29 ),
and by seismological data — 46 (rms=31 ) and the
average deviation between contraction axes direc-
tions in each point was 16 . In island Honshu these
values equaled: 110 (rms=38 ), 104 (rms=39 ) and
20 , respectively that also proved the results ob-
tained.
This work was partially supported by the Rus-
sian Foundation for Basic Research RFBR 09-05-
00687-�.
/#�)-(% '1%.�+,#(� #(%2
4� ���������
���
����������������������
Kostuk A. D. Source parameters of moderate-sized
earthquakes in the northern Tien Shan // Vestnic
KRSU. — 2008. — 8�������� �
������ ����
�������
������
Kostuk A. D., Sycheva N. A., Yunga S. L., Bogomo-
lov L. M., Yagi Y������������������������������ ����
�������!��������"����#����� ��$��%��������������
&��'���� �(�$������$�����((����%��$��)�**�+,-��
�)�
�� ���������#�(�$�������� �.����� ����/�� �
����.
0��
Radziminovitch N. A., Melnikova V. I., San’kov V. A.,
Levi K. G.�#����� ��)���$��������� ���� �$�������
������������� ������������#��������1��'�(�2�����**�+,-�
�)�� ����� ����#�(�$�������� �.��0�� ��������
���33 0.�
Zobin V. M. Source mechanism of earthquakes ��$
4�� ���'��4����$��� ��%���� �������� ���� � $��
���������� **� 5�� 6�( ���(�%)� ��$� #�����(�%)��
�789�� ����0�� �
���98 7.�
������������
Zubovich A. V., Makarov V. I., Kuzikov S. I., Mosien-
ko O. I., Shchelochkov G. G.� +���� ���������(
���������2��($��%����:�����(�;��������������$�����
����((����%��$��� �$����**�<���� ���� ��� �.��9��
������ �
����0 .7�
References
|