利用重磁資料初探北越地區之地下構造

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姓名

林依靜(Yi-Ching Lin) 查詢紙本館藏

畢業系所

地球物理研究所

論文名稱

利用重磁資料初探北越地區之地下構造
(Gravity and Geomagnetic anomalies of northern Vietnam and their tectonic implications)

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★ 台灣地區全磁場時空變化之研究(1989-2004年)	★ 遠近地震所引起地下水位變化之研究
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摘要(中)

紅河斷裂帶位於兩個大陸地殼的交界，呈西北－東南走向，從中國境內綿延至北越。整個北越地區由兩個地塊所組成，以紅河斷層為界，東北方為南中國地台，西南方則屬於越南－寮國褶皺系統的一部份。由於當地的構造複雜，地質及地物資料較少，因此本研究將利用重力及磁力的資料來探討當地的地下構造。所使用的重力及磁力資料為越南科學研究院地質科學所所提供，分別為布蓋重力異常值以及磁力異常值，再加上Geosat和ERS1兩顆衛星在海上測得的自由空間異常以及地形起伏。我們利用布蓋異常值計算得出區域重力異常及剩餘重力異常，進行構造的探討。
區域重力異常值在紅河凹地呈現相對的高值，從前人研究發表得知該區屬於大陸斷裂帶，推測重力高值應該是受到莫荷面變淺所影響。從重力異常的等值線變化也可看出紅河斷裂帶有往Tonkin灣延伸的趨勢，剩餘異常值反應出北越地區構造斷層的分布情形；磁力異常值則反應出北越地區火成岩出露以及岩漿侵入的位置。本研究亦使用三個經驗公式，由重力異常值估算出地殼厚度，推測北越地區的地殼厚度為32公里至45公里，由西北向東南漸薄。
由於在北越地區所做的探勘有限，對於該區地下構造的探究範圍也因此受限，用重力做出的解釋彼此間仍有很大的差異。若能有更多的震測、鑽井或是其他地質、地物相關的資料，對於地下構造的解釋將會有很大的幫助。

摘要(英)

The Red River fault zone has been considered to be a profound geological discontinuity separating the South China platform and the Indochina plate. The consequences of the large scale displacement and major tectonic features in Vietnam, such as rifting and folding, were caused by active of the above two tectonic units.
In this study, we combined the Bouguer gravity and geomagnetic anomalies of northern Vietnam, and the free-air gravity anomaly of Gulf of Tonkin. We calculated the regional gravity anomaly and the residual gravity anomaly. We also calculated the crustal thickness over my study region from the gravity and terrain data.
Comparison between the calculating results and the previous researches, we have obtained better results beneath the Red River fault zone and its vicinity. The area of gravity high was due to the continental rift zone. The extension of the gravity high revealed the extension of the Red River fault zone. From magnetic anomaly map, the distributions of intrusive and igneous rocks were easily distinguished. The locations of tectonic faults could also be verified from the residual gravity anomaly map.
Since we don’t have enough reliable data, the constraints to the deeper structure were limited. Seismic profile and detailed prospecting will help to understand the tectonic of northern Vietnam in the future.

關鍵字(中)

★ 磁力
★ 重力
★ 紅河

關鍵字(英)

★ Red River
★ gravity anomaly
★ geomagnetic anomaly

論文目次

第一章緒論 1
1.1 研究動機與目的 1
1.2 前人研究 2
1.3 本文內容 3
第二章研究區域概述 7
2.1 研究區域位置概述 7
2.2 研究區域構造概述 7
2.3 研究區域地質概述 9
2.3.1 紅河斷裂變質帶 9
2.3.2 紅河斷裂帶以南 10
2.3.3 構造斷層 10
2.4 資料蒐集 11
第三章資料處理與重磁力異常 18
3.1 剩餘修正－八點平均法 18
3.2 重力異常 19
3.2.1 布蓋異常（Bouguer Anomaly） 19
3.2.2 剩餘重力異常與微分重力異常 20
3.3 越南北部布蓋重力異常 20
3.4 磁力修正及磁力異常 21
第四章重磁異常分佈與解釋及莫荷面起伏 25
4.1 區域重力異常 25
4.1.1 紅河凹地 26
4.1.2 紅河斷裂帶 28
4.1.3 南中國地台 28
4.1.4 越南－寮國褶皺系統 29
4.2 剩餘重力異常 30
4.3 磁力異常 31
4.4 莫荷面起伏 32
第五章討論 49
第六章結論 54
參考文獻 56

參考文獻

Burchfiel, B. C., 2004, Presidential Address: New Technology; New Geological Challenges, GSA Today, v. 14, p. 4-9
Cao Dinh Trieu, 1995, New results about structure of the Earth’s crust in Vietnam., Journal of Geology, Series B ,1995, No.5-6, p.331-340.
Chang, S. L. and C. C. Hu, 1981, Gravity and Magnetic anomalies of Taiwan and their tectonic implication, Memoir of the Geological Society of China, No. 4, pp.121-142.
Chung, S.L., Lee, T.Y., Lo, C.H., Wang, P.L., Chen, C.Y., Nguyen, T.Y., Tran, T.H., Wu, G.Y., 1997. Intraplate extension prior to continental extrusion along the Ailao Shan Ð Red River shear zone. Geology, v. 25, p.311-314.
Demenitskaya, R. M., 1958, Planetary structures and their reflection in Bouguer anomalies, Sov. Geol., v.8.
Dinh Van Toan, 1999, 紅河斷層區域之構造活動研究報告, 越南科學研究院地質科學所，共26頁
Findlay, R. H. and Phan Trong Trinh, 1997, The Structural Setting of the Song Ma Region, Vietnam and the Indochina-South China Plate Boundary Problem, Gondwana Research, v. l , No.1. pp. 11-33.
General Geological Department of Vietnam, 1986, Geological map of Vietnam, scale 1:1,500,000
Ha Liong Tin and O. K. LITVINENKO, 1986, The structure of the earth’s crust of the Hanoi tectonic trough according to geophysical data and the problem of its riftogenesis, Journal of Geodynamics, v.5, p.179-203.
Houseman, G., and England, P., 1993, Crustal thickening versus lateral expulsion in the Indian-Asian continental collision, J. Geophy. Res., v.98, p.12233-12249.
Jolivet, L., Beyssac, O., Goff?, B., Avigad, D., Lepvrier, C., Maluski, H., and Thang, T.T., 2001, Oligo-Miocene midcrustal subhorizontal shear zone in Indochina, Tectonics, v. 20, p. 46-57.
Leloup, P. H., Arnaud, N., Lacassin, R., Kienast, J. R., Harrison, T. M., Phan Trong, T.T., Replumaz, A., and Tapponnier, P., 2001, New constraints on the structure, thermochronology, and timing of the Ailao Shan-Red River shear zone, SE Asia, J. Geophy. Res, v. 106, p. 6683-6732.
Lepvrier, C., H. Maluski, Vu Van Tich, A. Leyreloup, Phan Truong Thi, Nguyen Van Vuong, 2004, The Early Triassic Indosinian orogeny in Vietnam (Truong Son Belt and Kontum Massif ); implications for the geodynamic evolution of Indochina, Tectonophysics, v.393, p. 87– 118
Lan, C.Y., Chung, S. L., Jason Jiun-San Shen, Ching-Hua Lo, Pei-Ling Wang, Tran Trong Hoa, Hoang Huu Thanh, Stanley A. Mertzman, 2000, Geochemical and Sr-Nd isotopic characteristics of granitic rocks from northern Vietnam,Journal of Asian Earth Sciences, v.18, p.267-280
Nguyen Nhu Trung, Sang-Mook Lee and Bui Cong Que, 2004, Satellite Gravity Anomalies and 'Their Correlation with the Major Tectonic Features in the South China Sea, Gortdwana Research, v.7, No 2, pp. 407-424.
Nguyen Kim Lap, 1991, The seismotectonics of the lndochina Peninsula, Journal of Southeast Asian Earth Sciences, v. 6, No. 2, pp. 55-61
Phan Cu Tien, 1989, Geology of Kampuchea, Laos and Vietnam and accompanying 1:1000000 geological maps. Institute for Information and Documentation of Mines and Geology, Hanoi, pp 149.
Roger, F., Calassou, S., Lancelot, J., Malavieille, J., Mattauer, M., Xu, Z., Hao, Z., and Hou, L., 1995, Miocene emplacement and deformation of the Konga Shan granite (Xianshui He fault zone, west Sichuan, China): Geodynamic implications, Earth and Planetary Science Letters, v. 130, p. 201-216.
Sandwell, D.T. and Smith, W.H.E, 1997, Marine gravity anomaly from Geosat and ERS 1 satellite altimetry. J. Geophy. Res., v. 102, pp. 10039-10054
Searle. M.P.. 1988. Structural evolution and sequence of thrusting in the High Himalayan. Tibetan Tethys and Indus suture zones of Zanskar and Ladakh. western Himalaya, Reply. J. Struct. Geol.. 10, p.130-132.
Tapponnier, P., Peltzer, G., Armijo, R., Le Dain, A.Y., Cobbold, P.,1982, Propagating extrusion tectonics in Asia: New insights from simple experiments with plasticine. Geology, v.10, p.611-616.
Tapponnier, P., Peltzer, G., and Armijo, R., 1986, On the mechanics of the collision between India and Asia, in Coward, M. P., and Ries, A. C., eds., Collision Tectonics, v. 19: Geol. Soc. Spec. Publ. No. 19: London, Geol. Soc. London, p. 115-157.
Tran Van Tri, 1973, 1:1000000 Geological Map of Vietnam (the north part). The General Department of Geology of the Democratic Republic of Vietnam, Hanoi.
Tran Van Tri , 1979, Geology of Vietnam (the north part) Science and Technology Publishing House (1977 in Vietnamese, 1979 in English), p. 78
Van Due Chuong, 1995. Ophiolite zone in Vietnam. J. Geol. B5, No.6 , p.323. Hanoi, Vietnam.
Wang, E., and Burchfiel, B. C., 1997, Interpretation of Cenozoic tectonics in the right-lateral accomondation zone between the Ailao Shan shear zone and the Eastern Himalayan Syntaxis, International Geology Review, v. 39, p. 191-219.
W. Zuchiewicz, Nguyen Quoc Cuong, Andrzej Bluszcz, Marek Michalik, 2004, Quaternary sediments in the Dien Bien Phu fault zone, NW Vietnam: a record of young tectonic processes in the light of OSL-SAR dating results, Geomorphology, v.60, p.269–302
Woollard, G. P., 1959, Crustal structure from gravity and seismic measurement, J. Geophys. Res., v.64, No.10, p.1521-1544.
Woollard, G. P. and Strange, W. E., 1962, Gravity anomalies and crust of the earth in the Pacific basin, In MacDonald, G. A. and Kuno, H.(eds.) the Crust of the Pacific Basin, Geophys. Monograph 6, p.60-80, American Geophysical Union. Washington, D. C..
吳幸鴻, 2002, 紅河斷裂帶地震活動以及東南亞地殼與上部地函構造之研究, 博士論文, 中央大學, 中壢, 共160頁

指導教授

顏宏元(Horng-Yuan Yen)

審核日期

2006-6-29

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