CONNECTION OF HEAT FLOW ANOMALIES WITH ZONES OF RHEOLOGICAL LOWER DENSITY CONTRAST IN UPPER MANTLE OF THE EASTERN ASIAN MARGINS

A.M. Petrishchevsky

Аннотация


Results of the correlation analysis of heat flow anomalies with distributions of density contrast (µz-parameter)  in rifting and plume structures on eastern margin of Asia  which prove selective return correlation of these parameters in intervals of depths corresponding to the provision of the subcrustal viscous layer (the deep interval 25–45 км) and astenosphere (the deep interval 70–90 км) are considered. The  South-Okhotsk rift has anomalous  characteristic, where subcrustal layer locates at the depth of 10–25 km, and astenosphere – 45–55 km. In most regions (South Okhotsk, Sea of Japan, Cathaysia) main contribution to the heat flow brings a subcrustal viscous layer, but in the Indigiro-Kolimsky – asthenosphere contribution is prevailed over subcrustal one. The heat flow from an asthenosphere on Ceinozoic borders of lithospheric plates is screened by subduction’s slabs. In the Chenzhou–Linwu fault zone at the boundary of the Yangtze plate and Cathaysia block the wide  stretch-shear zone in  lithosphere is revealed. The late is displayed by the density contrast minima at the depth interval of 30–100 km and heat flow anomalies. in this zone, on geological data, manifestations of stretching, viscous shear and oblique subduction are detected. The main contribution to thermal anomalies in rift structures is made by a subcrustal viscous layer. Identical correlation of Q and µz-параметра in the areas removed from each other testifies to an identical deep structure and universality of tectonic states on eastern margins of the Asia where in space and time subduction’s rifting and plume processes  are interfaced.  

Ключевые слова


heat flow; upper mantle; density contrast; rheology; Eastern Asia

Литература


Belyavskii V.V., Egorkin A.N., Zolotov E:.E. i dr. Seismoelectric parameters of the tectonosphere of the Eurasian folded belt, in Fundamental’nye problemy tektoniki: materialy XL Tektonicheskogo soveshchaniya (Fundamental Problems of Tectonics: Proceedings of the XL Tectonic Meeting). Moscow: Geos Publ., 2007, vol. 1, pp. 79–81. (In Russ.).

Vashchilov Yu.Ya., Gaidai N.K., Maksimov A.E., Lyubomudrov V.V., Luchinina A.V., Postnikova V.V. Polyastenosphere of the North-East of Russia - methods of study, structure, kinematics, dynamics, in Astenosfera i litosfera Severo-Vostoka Rossii (struktura, geokinematika, evolyutsiya) (Asthenosphere and lithosphere in the north-east of Russia (their structures, geologic kinematics and development)). Magadan: NEISRI FEB RAS, 2003, pp. 135–142. (In Russ.).

Veselov O.V. Geothermics of a tectonosphere of the Japan-Sea – Sea of Okhotsk Region. Dissertation of cand. Sci. (geol.-mineral.). Khabarovsk: ITIG FEB RAS, 2005. 204 p. (In Russ.).

Vikulin A.V. Vvedenie v fiziku Zemli: ucheb. posob. dlya geofizich. spets. (Introduction to the physics of the Earth). Petropavlovsk-Kamchatsky: IVS FEB RAS, 2004. 239 p. (In Russ.).

Geodinamika, magmatizm i metallogeniya Vostoka Rossii (Geodynamics, magmatism and metallogeny of the Russian East), A.I. Hanchuk, Ed. Vladivostok: Dalnauka Publ., 2006. 981 p. (In Russ.).

Glubinnoe stroenie i metallogeniya Vostochnoi Azii (Deep structure and metallogeny of the Eastern Asia), A.N. Didenko, V.B. Kaplun, Yu.F. Malyshev, Eds. Vladivostok: Dalnauka Publ., 2010. 332 p. (In Russ.).

Gornov P.Yu. Seismicity, boundaries and thermal field of the lithosphere plates of the North East Euro-Asia, in Geodinamicheskie protsessy i prirodnye katastrofy. Opyt Neftegorska. (Geodynamic processes and nature disasters. The Neftegorsk experience). Yuzhno-Sakhalinsk, 2015. pp. 55–59. (In Russ.).

Emelyanova T.A., Izosov L.A., Lee N.S., Pugachev A.A., Petrishchevsky A.M. Late Mesozoic stages of the volcanism and geodynamics of the Japan and Sea of Okhotsk Seas. Petrology, 2020, vol. 28, no. 5, pp. 468–481. (In Russ.).

Izosov L.A., Konovalov Yu.I., Emel’yanova T.A. Problemy geologii i almazonosnosti zony perekhoda kontinent – okean (Yaponomorskii i Zheltomorskii regiony) (Problems of Geology and diamond bearing of the continent-ocean transition zone (the Sea of Japan and Yellow Sea Regions). Vladivostok: Dal’nauka Publ., 2000. 326 p. (In Russ.).

Kaplun V.B. Electrical conductivity and structure of the Amur lithosphere. Extended Abstract of Cand. Sci. (geol.-mineral.) Dissertation. Khabarovsk: ITIG FEB RAS, 2005. 24 p. (In Russ.).

Lelikov E.P., Emelyanova T.A., Pugachev A.A. Volcanism and tectonics of the Central Deep Basin Sea of Japan. Oceanology, 2018, vol. 58, no. 1, pp. 129–144. (In Russ.).

Lobkovskii L.I. Geodinamika spredinga, subduktsii i dvukh”yarusnaya tektonika plit (Geodynamics of spreading, subduction and two-level tectonics of plates). Moscow: Nauka Publ., 1988. 256 p. (In Russ.).

Lysak S.V. Thermal History, Geodynamics and Current Thermal Activity of Lithosphere in China. Geologiya i geofizika, 2009, vol. 50, no. 8, pp. 1058–1071. (In Russ.).

Petrishchevsky A.M., Zlobin T.K. Density inhomogeneity of the Sea of Okhotsk Region’s lithosphere. Uchenye zapiski Sakhalinskogo gosudarstvennogo universiteta, 2004, no. 4,

pp. 10–20. (In Russ.).

Petrishchevsky A.M. A Viscous Layer at the Crust-Mantle Boundary in the Far East of Russia. Geotektonika, 2008, no. 5, pp. 37–48. (In Russ.).

Petrishchevsky A.M. Gravitatsionnyi metod otsenki reologicheskikh svoistv zemnoi kory i verkhnei mantii (v konvergentnykh i plyumovykh strukturakh Severo-Vostochnoi Azii) (Gravity method for evaluation of rheological properties of the crust and uppermost mantle (in the convergent and plume structures of the North-East Asia)). Мoscow: Nauka Publ., 2013. 192 p. (In Russ.).

Petrishchevsky A.M. Gravity Models of Two-Level Collision of Lithospheric plates in Northeastern Asia. Geotektonika, 2013, no. 6, pp. 60–83. (In Russ.).

Petrishchevsky A.M. Rheological and geothermal features of the Okhotsk Sea plume. Izvestiya Tomskogo politekhnicheskogo universiteta. Inzhiniring georesursov, 2016, vol. 327, no. 2, pp. 65–76. (In Russ.).

Petrishchevsky A.M. Rift Structures and Oil-Gas Bearing in the Gravity Rheological Models of the Crust. Geofizika, 2019, no. 4, pp. 42–51. (In Russ.).

Petrishchevsky A.M. One Practical Consequence from Theorems of Uniqueness and Equivalence of Inverse Gravity Problem. Geofizika, 2020, no. 4, pp. 98–111. (In Russ.).

Petrishchevsky A.M., Yushmanov Y.P. Rheology and Metallogeny of the Maya-Selemdzha Plume. Doklady RAN, 2011, vol. 440, no. 2, pp.207–212. (In Russ.).

Petrishchevsky A.M., Vasileva M.A., Izosov L.A., Emelyanova T.A., Lee N.S. Structure, Rheology, Petrology, and Geodynamics of the Tectonosphere of the Sea of Japan. Okeanologiya, 2021, vol. 61, no. 1, pp. 116–131. (In Russ.).

Piskarev A.L., Butsenko V.V., Poselov V.A., Savin V.A. Deep Structure of the Crust Beneath the Sea of Okhotsk Inferred from 3d Seismic Density Modeling. Okeanologiya, 2012, vol. 52, no. 3, pp. 437–448. (In Russ.).

Sorokhtin O.G., Ushakov S.A. Razvitie Zemli (Evolution of the Earth). Мoscow: MSU, 2002. 506 p. (In Russ.).

Struktura i dinamika litosfery i astenosfery Okhotomorskogo regiona. Rezul’taty issledovanii po mezhdunarodnym geofizicheskim proektam (Structure and dynamics of lithosphere and asthenosphere of the Sea of Okhotsk Region. Results of researches on International Geophysical projects), A.G. Rodnikov, Ed. Moscow, 1996. 337 p. (In Russ.).

Tektonika i geodinamika i metallogeniya territorii respubliki Sakha (Yakutiya). (Tectonics, geodynamics and metallogeny of the Sakha republic territory). Moscov: Nauka Publ., 2001. 571 p. (In Russ.).

Tektonosfera Tikhookeanskoi okrainy Azii (Tectonosphere of the Pacific margin of Asia), V.V. Gordienko, Ed. Vladivostok: FEB RAS, 1992. 238 p. (In Russ.).

Tuezov I.K., Epaneshnikov V.D., Khayakava M. Geotermiya. Regional’nye problemy. Modelirovanie. Prakticheskie prilozheniya (Geothermy. Regional problems. Modeling. Practical applications). Moscow: Nedra Publ., 1995. 303 p. (In Russ.).

Shakhtyrov V.G. The Upper Kolymian Auriferous Area from Viewpoints of the Strike-Slip Fault Tectonics Theory. Izvestiya sibirskogo otdeleniya RAEN. Geologiya, poiski i razvedka rudnykh mestorozhdenii, 2009, no. 2 (35), pp. 89–98. (In Russ.).

Yushmanov Yu.P. Gold Vortex Structures in Shear Duplexes of the Far East: the Central Kolyma, Lower Priamurye. Otechestvennaya geologiya, 2019, no. 3, pp. 55–62. (In Russ.).

Cai G., Wan Zh., Yao Y., Zhong L., Zheng H., Kapsiotis A., Zhang C. Mesozoic Northward Subduction Along the SE Asian Continental Margin Inferred from Magmatic Records in the South China Sea. Minerals, 2019, vol. 9, no. 598, pp. 2–25. DOI: 10.3390/min9100598.

Chen Y., Xie J. Resolution, uncertainty and data predictability of tomographic Lg attenuation models − application to Southeastern China. Geophysical Journal International, 2017, vol. 210, no. 1, pp. 166–183. DOI: 10.1093/gji/ggx147.

Faure M., Chen Y., Feng Z., Shu L., Xu Z. Tectonics and Geodynamics of South China: an introductory note. Journal of Asian Earth Sciences, 2017, vol. 141, pp. 1–6. DOI: 10.1016/j.jseaes.2016.11.031.

He C., Dong S., Santosh M., Chen X. Seismic Evidence for a Geosuture between the Yangtze and Cathaysia Blocks, South China. Scientific Reports, 2013, no. 3, 2200.

Jia L., Mao J., Liu P., Miao Yu.M. Crust–mantle interaction during subduction zone processes: Insight from late Mesozoic I-type granites in eastern Guangdong, SE China. Journal of Asian Earth Sciences, 2020, vol. 192, 104284.

Klemperer S.I. A relation between continental heat flow and the seismic reflectivity of the lower crust. Journal of Geophysics, 1987, vol. 61, no. 1, pp. 1–11.

Li T. The principal characteristics of the lithosphere of China. Geoscience Frontiers, 2010, vol. 1, pp. 45–56.

Lin J., Xu T., Cai H., et al. Crustal velocity structure of Cathaysia Block from an active-source seismic profile between Wanzai and Hui’an in SE China. Tectonophysics, 2021, vol. 811, 228874.

Ren J., Tamaki S. Li., Zhan J. Late Mesozoic and Cretaceous rifting and its dynamic setting in Eastern China and adjacent areas. Tectonophysics, 2002, vol. 344, pp. 175–205.

Tao W., Shen Z. Heat flow distribution in Chinese continent and its adjacent areas. Natural Science, 2008, vol. 18, pp. 843–849.

Wang Y., Zhang F., Fan W., Zhang G., Chen S., Cawood P.A., Zhang A. Tectonic setting of the South China Block in the early Paleozoic: Resolving intracontinental and ocean closure models from detrital zircon U-Pb geochronology. Tectonics, 2010, vol. 29, TC6020, pp. 1–16. DOI: 10.1029/2010TC002750

Wang F.Y., Ling M.X., Ding X., Hu Y.H., Zhou J.B., Yang X.Y. Mesozoic large magmatic events and mineralization in SE China: oblique subduction of the Pacific plate. International Geology Review, 2011, vol. 53, no. 5–6, pp. 704–726.

Xia Y., Xu X., Niu Y., Liu L. Neoproterozoic amalgamation between Yangtze and Cathaysia blocks: the magmatism in various tectonic settings and continent-arc-continent collision. Precambrian Research, 2018, vol. 309, pp. 56–87.

Yao J.L., Cawood P.A., Shu L.S., Santosh M., Li J.Y. An early Neoproterozoic accretionary prism ophiolitic Mélange from the Western Jiangnan Orogenic Belt, South China. The Journal of Geology, 2016, vol. 124, no. 5, pp. 587–601.

Zhai M., Zhou Ya. General Precambrian Geology in China, in Precambrian Geology of China. New York: Springer-Verlag Berlin Heidelberg, 2015, pp. 3–56.

Zhang Z., Wang Y. Crustal structure and contact relationship revealed from deep seismic sounding data in South China. Physics of the Earth and Planetary Interiors, 2007, vol. 165 (1–2), pp. 114. DOI:10.1016/j.pepi.2007.08.005.

Zhou L., Xie J., Shen W., Zheng Y., Yang Y., Shi H., Ritzwolle M.H. The structure of the crust and uppermost mantle beneath South China from ambient noise and earthquake tomography. Geophys. J. Int., 2012, vol. 189, pp. 1565–1583.

Zhu J.S., Cai X.L., Cao J.M., Yan Z.Q. Lithosphere structure and geodynamics in China and its adjacent areals. Geology in China, 2006, vol. 33 (4), pp. 793–803.


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