The Central Asian Orogenic Belt and growth of the continental crust in the Phanerozoic

Geological Society Special Publication - Tập 226 Số 1 - Trang 73-100 - 2004
Bor‐ming Jahn1
1Department of Geosciences, National Taiwan University, P.O. Box 13-318, Taipei 106, Taiwan

Tóm tắt

Abstract Asia is the world’s largest composite continent, comprising numerous old cratonic blocks and young mobile belts. During the Phanerozoic it was enlarged by successive accretion of dispersed Gondwana-derived terranes. The opening and closing of palaeo-oceans would have inevitably produced a certain amount of fresh mantle-derived juvenile crust. The Central Asian Orogenic Belt (CAOB), otherwise known as the Altaid tectonic collage, is now celebrated for its accretionary tectonics and massive juvenile crustal production in the Phanerozoic. It is composed of a variety of tectonic units, including Precambrian microcontinental blocks, ancient island arcs, ocean island, accretionary complexes, ophiolites and passive continental margins. Yet, the most outstanding feature is the vast expanse of granitic intrusions and their volcanic equivalents. Since granitoids are generated in lower-to-middle crustal conditions, they are used to probe the nature of their crustal sources, and to evaluate the relative contribution of juvenile v. recycled crust in the orogenic belts. Using the Nd-Sr isotope tracer technique, the majority of granitoids from the CAOB can be shown to contain high proportions (60 to 100%) of the mantle component in their generation. This implies an important crustal growth in continental scale during the period of 500–100 Ma. The evolution of the CAOB undoubtedly involved both lateral and vertical accretion of juvenile material. The lateral accretion implies stacking of arc complexes, accompanied by amalgamation of old microcontinental blocks. Parts of the accreted arc assemblages were later converted into granitoids via underplating of basaltic magmas. The emplacement of large volumes of post-accretionary alkaline and peralkaline granites was most likely achieved by vertical accretion through a series of processes, including underplating of basaltic magma, mixing of basaltic liquid with lower-crustal rocks, partial melting of the mixed lithologies leading to generation of granitic liquids, and followed by fractional crystallization. The recognition of vast juvenile terranes in the Canadian Cordillera, the western US, the Appalachians and the Central Asian Orogenic Belt has considerably changed our view on the growth rate of the continental crust in the Phanerozoic.

Từ khóa


Tài liệu tham khảo

10.1016/S0024-4937(98)00040-1

10.1016/0009-2541(95)00012-B

10.1016/S0040-1951(00)00183-9

10.1130/0091-7613(1987)15<893:UAAOCA>2.0.CO;2

10.1016/S0024-4937(98)00019-X

10.1016/S1367-9120(02)00017-2

10.1007/s004100050159

10.1016/0012-821X(84)90188-2

10.1016/0012-821X(85)90024-X

Berzin N. A., Dobretsov N. L. , Coleman R. G. Geodynamic evolution of southern Siberia in late Proterozoic—early Paleozoic time Reconstruction of the Paleo-Asian ocean 1994 Utrecht, The Netherlands VSP International Science Publishers 53 70

10.1007/BF02910304

10.1126/science.258.5089.1760

10.1016/0040-1951(90)90004-R

10.1093/petrology/35.4.919

10.1016/S0040-1951(97)00186-8

10.1017/S0016756801006100

10.1016/S1367-9120(03)00118-4

10.1016/S0040-1951(00)00182-7

10.2343/geochemj.31.17

10.1016/0009-2541(94)90186-4

10.1029/TC008i003p00621

10.1017/S0263593300006581

10.1080/08120099808728406

10.1016/0012-821X(86)90118-4

10.1016/S0009-2541(97)00101-0

10.1144/gsjgs.151.5.0795

10.1017/S0016756800014175

10.1007/BF00375529

10.1029/90JB02219

10.1016/0024-4937(94)90040-X

10.1080/00206819509465407

10.1016/S1367-9120(03)00132-9

10.1016/0009-2541(88)90027-7

10.1016/S0009-2541(96)00141-6

10.1029/97JB00972

10.1016/0009-2541(90)90126-R

10.1130/0091-7613(1996)024<0535:SEOFAK>2.3.CO;2

Fang W. C. Granitoids and Mineralisation in Jilian Province 1992 Jilin, China Jilin Science and Technology Publishing House 271 pp

10.1029/TC008i004p00729

10.1093/petroj/40.11.1613

10.1093/petrology/26.2.515

10.2475/ajs.298.8.673

10.1029/96JB00662

Gordienko I. V. Paleozoic magmatism and geodynamics of Central-Asian foldbelt 1987 Moscow Nauka 238

10.1038/307229a0

10.1038/287279a0

10.1016/S0009-2541(97)00003-X

10.1093/petroj/40.1.3

10.1016/S0040-1951(00)00178-5

10.1016/0016-7037(85)90030-4

10.1111/j.1755-6724.1995.mp8001003.x

10.1016/0743-9547(96)00002-5

Hsü K. J. , Kleinspehn K. L., Paola C. Relict back-arc basins: principles of recognition and possible new examples from China New Perspectives in Basin Analysis 1989 New York Springer-Verlag 245 263

10.1016/0040-1951(90)90186-C

10.1016/S0040-1951(00)00176-1

Huang X., Sun S. H., DePaolo D. J., Wu K. L. Nd-Sr isotope study of Cretaceous magmatic rocks from Fujian province Acta Petrologica Sinica 1986 2 50 63

10.1016/S0016-7037(99)00027-7

10.1093/petrology/34.2.345

10.1016/S1367-9120(03)00125-1

10.1130/0016-7606(1976)87<763:RAOGRI>2.0.CO;2

10.1016/0040-1951(86)90009-0

10.1017/S0263593300007367

10.18814/epiiugs/2000/v23i2/001

10.1016/S0024-4937(01)00066-4

10.1016/0040-1951(90)90413-3

10.1130/0091-7613(1997)025<0307:ATCSNI>2.3.CO;2

10.1007/BF02910481

10.1093/petroj/38.3.371

Kovalenko V. I., Tsareva G. M., Yarmolyuk V. V., Troisky V. A., Farmer G. L., Chernishev I. V. Sr-Nd isotopic compositions and the age of rare-metal peralkaline granitoids from western Mongolia Dokladi Akademiia Nauka 1992 237 570 574 in Russian

Kovalenko V. Yarmolyuk V. Bogatikov O. Magmatism geodynamics and metallogeny of Central Asia 1995 Moscow Miko Commercial Herald Publishers 272 pp

Kovalenko V. I., Yarmolyuk V. V., Kovach V. P., Kotov A. B., Kozakov I. K., Sal’nikova E. B. Sources of Phanerozoic granitoids in Central Asia: Sm-Nd isotope data Geochemistry International 1996 34 628 640

10.1016/S1367-9120(03)00130-5

Kozakov I. K., Kotov A. B., Kovach V. P., Sal’nikova E. B. Crustal growth in the geological evolution of the Baidarik block, central Mongolia: evidence from Sm-Nd isotopic systematics Petrology 1997 5 201 207 (translated from Petrologiya, 5, 227-235).

Kruk N. N., Titov A. V., Ponomareva A. P., Shokalskii S. P., Vladimirov A. G., Rudnev S. N. The internal structure and petrology of the Aya syenite-granosyenite-granite series (Gorny Altai) Russian Geology & Geophysics 1998 39 1075 1087

Kruk N. N., Rudnev S. N., Vystavnoi S. A., Peleeskiy S. V. , Dobretsov N. L., Jahn B. M., Vladimirov A. G. Sr-Nd isotopic systematics of granitoids and evolution of continental crust of the western part of the Altai-Sayan Fold Region. Abst. 2001 IGCP-420 Workshop III 68 72 Abstract volume

10.1007/BF02842192

10.1130/0091-7613(1995)023<0249:NISOPB>2.3.CO;2

10.1016/0009-2541(95)00056-R

10.2343/geochemj.33.153

Le Maitre R. W., Bateman P. , et al. A Classification of Igneous Rocks and Glossary of Terms 1989 Oxford Blackwell

10.1016/0009-2541(89)90126-5

10.1007/BF00402106

Litvinovsky B. A., Zanvilevich A. N. Compositional trends of silicic and mafic magmas formed in the course of evolution of the Mongolian-Transbaikalian Mobile Belt Russian Geology 1998 39 155 180

Litvinovsky B. A., Zanvilevich A. N., Alakshin A. M., Podladchikov Yu. The Angara-Vitim batholith — the largest granitoid pluton Novosibirsk, Nauka 1992 141 pp

10.1016/S0024-4937(02)00179-2

10.1016/S0009-2541(02)00142-0

Litvinovsky B. A., Zanvilevich A. N., Wickham S. M. Angara-Vitim batholith, Transbaikalia: structure, petrology and petrogenesis Russian Geology and Geophysics 1994 35 190 203

10.1016/0012-821X(82)90102-9

10.1093/petrology/35.4.983

10.1093/petroj/38.7.815

10.2343/geochemj.23.245

10.2343/geochemj.21.119

10.1007/BF00287111

10.1016/0009-2541(90)90285-F

Parfenov L. M., Popeko L. I., Tomurtogoo O. The problems of tectonics of the Mongol-Okhotsk orogenic belt Pacific Oceanic Geology 1999 18 24 43

10.1130/0091-7613(2002)030<0039:ROTCMI>2.0.CO;2

10.1016/0009-2541(94)90025-6

10.1093/petrology/36.5.1251

10.1126/science.253.5016.176

10.1126/science.269.5229.1413

10.1029/TC003i001p00063

10.1130/0091-7613(1986)14<299:RGOSMS>2.0.CO;2

10.1016/0024-4937(89)90028-5

10.1038/378571a0

Ruzhentsev S. V., Mossakovskiy A. A. Geodynamics and tectonic evolution of the Central Asian Paleozoic structures as the result of the interaction between the Pacific and Indo-Atlantic segments of the earth Geotectonics 1996 29 211 311

10.1080/08120099108727994

10.1038/337705a0

10.1146/annurev.earth.24.1.263

10.1038/364299a0

10.1016/0009-2541(95)00083-X

10.1007/BF00344082

10.1038/382773a0

10.1029/TC009i002p00249

10.1093/petrology/36.5.1305

10.1007/BF00306440

10.1016/0031-9201(84)90041-4

Vladimirov A. G., Ponomareva A. P. , et al. Late Paleozoic-Early Mesozoic granitoid magmatism in Altai Russian Geology and Geophysics 1997 38 755 770

Vladimirov A. G., Babin G. A., Rudnev S. N., Kruk N. N. Geology, magmatism and metamorphism of the western part of Altai-Sayan Fold Region 2001 IGCP-420 Workshop III Excursion Guidebook Novosibirsk, Russia Institute of Geology RASSB 139 pp

Wang S. G., Han B. F., Hong D. W., Xu B. L., Sun Y. L. Geochemistry and tectonic significance of alkali granites along Ulungur River, Xinjiang (in Chinese with English abstract) Scientia Geologica Sinica 1994 29 373 383

10.1029/95JB00035

10.1093/petrology/37.5.1063

Wilde S. A., Dorsett-Bain H. L., Liu J. L. The identification of a Late Pan-African granulite facies event in Northeastern China: SHRIMP U-Pb zircon dating of the MashanGroup at Liu Mao, Heilongjiang Province, China 1997 17 Proceedings of the 30th IGC: Precambrian Geology and Metamorphic Petrology 59 74

10.1016/S0040-1951(00)00180-3

10.1017/S0263593300007926

10.1144/gsjgs.150.1.0039

Windley B. The Evolving Continents 1995 Third edn Chichester John Wiley & Sons Ltd 526 pp

10.1016/S0040-1951(00)00179-7

10.1016/S1464-1895(01)00128-4

10.1016/S0009-2541(02)00018-9

10.1016/S0024-4937(02)00222-0

10.1016/S0024-4937(03)00015-X

Wu Q. F. The Junggar terrane and its significance in the tectonic evolution of the Kazakhstan Plate Plate Tectonics of Northern China 1987 No. 2 Beijing Geological Publishing House 29 38 in Chinese with English abstract

Yarmolyuk V. V., Kovalenko V. I., Kotov A. B., Sal’nikova E. B. The Angara-Vitim Batholith: on the problem of batholith geodynamics in the Central Asian Foldbelt Geotectonics 1997 31 345 358

Yarmolyuk V. V., Litvinovsky B. A. , et al. Formation stages and sources of the peralkaline granitoid magmatism of the northern Mongolia-Transbaikalia rift belt during the Permian and Triassic Petrology 2001 9 302 328

10.1086/629732

Zhao Z. H. REE and O-Pb-Sr-Nd isotopic compositions and petrogenesis of the Altai granitoids New Development of Solid Earth Science in Northern Xinjiang 1993 Beijing Science Publishing Company 239 266

Zhao Z. H., Bai Z. H., Xiong X. L., Mei H. J., Wang Y. X. Geochemistry of alkali-rich igneous rocks of northern Xinjiang and its implications for geodynamics Acta Geologica Sinica 2000 74 321 328

Zhou T. X., Chen J. F., Chen D. G., Li X. M. Geochemical characteristics and genesis of granitoids from Alataw Mountain, Xinjiang, China Geochimica 1995 24 32 42 in Chinese with English abstract

10.1016/S0040-1951(00)00120-7

10.1029/GD021

10.1016/S0040-1951(99)00042-6

Thông tin
Thông tin xuất bản

Geological Society Special Publication

Tập 226 Số 1

73-100

Thông tin tác giả