The New Hypothesis of the Origin to the Emeishan LIP: Because of the “Collisions Aggregation Effect” of a Meteorite Impact
Volume 7, Issue 1, February 2018, Pages: 34-41
Received: Dec. 15, 2017;
Accepted: Jan. 3, 2018;
Published: Jan. 19, 2018
Views 2248 Downloads 83
Liu Chenming, Resource Exploration Institute, Yunnan Land and Resources Vocational College, Kunming, China
Emeishan LIP is the only accredited continental flood basalts (CFB) by domestic and international currently in China, there were a lot of explanations about its origin and based only on the petrology, chemistry, most believe its cause of formation is a "mantle plume", but just stay in the geochemical basis, there is no more convincing evidence. This article combined with the experiments and data demonstrate the truth and universality of the "Collisions Aggregation" theory, and think that there was a violent planetary collision occurred in the other side of the earth (the point of impact), the collision caused "Collisions Aggregation" effect and aroused a huge impact energy aggregated in the collisions aggregation point and earthquakes, volcanic activity and massive lava overflowed, the impact point and the collisions aggregation point were at the corresponding points of the ends of the earth through the geocenter, the impact and large-scale magmatism occurred almost simultaneously. The author believe that the Emeishan basalts may not be "mantle plume" caused, which broke lithosphere formed overflowing may not by the dome rising or crust thinning or rift valley of the dome head effect of the "mantle plume", but may be form a rising channel caused by "Collisions Aggregation" effect on account of a violent asteroid impact at the P/T historical periods of the earth, and the thermal fluid overflow because of external disturbances. Meanwhile, this article also explore the dynamic mechanisms of the "mantle plume" and make the role of better ideas to explore the relationship between the distribution of the hot spots in the surface of the earth and the asteroid impact events and the global mass extinction events.
The New Hypothesis of the Origin to the Emeishan LIP: Because of the “Collisions Aggregation Effect” of a Meteorite Impact, Earth Sciences.
Vol. 7, No. 1,
2018, pp. 34-41.
ZHANG Yunxiang, LUO Yaonan, YANG Chongxi. 1988. The Panzhihua-Xichang rift valley [M]. Beijing: Geological Publishing House. (in Chinese).
Cong Bolin. 1988. The formation and evolution of the Panzhihua-Xichang ancient rift valley [M]. Beijing: Science Press. (in Chinese).
XIONG Shunhua, LI Jianlin. 1994. The characteristics about the basalt in the edge of continental rift of late Permian in the Emei mountain. Journal of Chengdu Institute of Geology [J]. 1: 43-57. (in Chinese with English abstract).
Chung S L, Jahn B M. 1995. Plume—lithosphere interaction in generation of the Emeishan flood basalts at the Permian–Triassic boundary. Geology, 23: 889-892.
XU Yigang, ZHONG Sunlin. 2001. The formation of Permian Emeishan large igneous province: evidence of the mantle plume activity and its melting conditions [J]. Geochemistry, 30 (1): 12-9. (in Chinese with English abstract).
SONG Xieyan, HOU Zengqian et al. 2001. The petrochemical characteristics and time limit of the Emeishan large igneous province [J]. Acta Geologica Sinica, 75 (4): 498-506. (in Chinese with English abstract).
ZHANG Zhao Chong, WANG Fusheng, FAN Weiming et al. 2001. The Discussion of some problems in the study of Emeishan basalt [J]. Acta Petrologica Et Mineralogica, 20 (3): 239-246. (in Chinese with English abstract).
GUO Zhaojie, ZHU Bei, CHEN Shi. 2015. Peperite: Constraints to a few key tectonic events in China [J]. Earth Science Frontiers, 22 (2): 174-186. (in Chinese with English abstract).
HE Bing, XU Yigang, XIAO Long et al. 2006. The Sedimentary response and geological significance of the Emeishan mantle plume rising [J], Geological Review, 52 (1): 30-37. (in Chinese with English abstract).
Zhou Meifu, Malpas J, Song X Y, et al. A temporal link between the Emeishan large igneous province (SW China) and the end–Guadalupina mass extinction [J]. Earth and Planetary Scinece Letters, 2002, 196 (3-4): 113-122.
Huang K N, Opdyke N D. 1998. Magnetostratigraphic investigations on an Emeishan basalt section in western Guizhou province, China [J]. Earth and Planetary Science Letters, 163 (1-4): 1-14.
Guo F, Fan W M, Wang Y J. 2004. When did the Emeishan mantle plume activity start? Geochronological and geochemical evidence from ultramafic–mafic dikes in southwestern China [J]. International Geology Review, 46: 226-234.
HE B, Xu Y G, Huang X L, et al. 2007. Age and duration of the Emeishan flood volcanism, SW China: Geochemistry and SHRIMP zircon U–Pb dating of silicic ignimbrites, post–volcanic Xuanwei Formation and clay tuff at the Chaotian section [J]. Earth and Planetary Scinece Letter, 255 (3-4): 306-323.
QIN Dexian, ZHANG Xushu et al. 2008. The valley evolution and mineralization about basic magma of Jinping-Heishuihe [M]. Beijing: Geological Publishing House. (in Chinese).
LU Jiren. 1996. The dynamics characteristics of Emeishan mantle plume [J]. Acta Geoscientia Sinica, 17 (4): 424-438. (in Chinese with English abstract).
ZHANG Zhaochong, WANG Fusheng. 2002. The find of the Permian picrite mass lava in the Emeishan large igneous province [J]. Geological Review, 48 (4): 448-454. (in Chinese with English abstract).
CHEN Qianyi, LIU Kaixin, LIU Weidong et al. 2009. The numerical simulation and analysis of the fused silica glass hypervelocity impact [J]. The spacecraft environment engineering, 26: 5-8. (in Chinese with English abstract).
Huang K N, Opdyke N D, Peng X, et al. 1992. Paleomagnetic results form the upper Permian of the eastern Qiangtang terrane of Tibet and their tectonic implications [J]. Earth and Planetary Science Letters, 111: 1-10.
Courtillot V. 1999. Evolutionary Catastrophes: The Sciences of Mass Extinctions [M]. Cambrige: Cambrige University Press.
THOMPSON G M, Ali J R, Song X Y, et al. 2001. Emeishan Basalts, SW China: Reappraisal of the formation’s type area stratigraphy and a discussion of its significance as a large igneous province [J]. Journal of the Geological Society, 158 (4): 593-599.
HE Bing, XU Yigang et al. 2003. The mechanism and space distribution of the emeishan large igneous province: a new evidence from the sedimentary stratigraphy [J]. Acta Geologica Sinica, 77 (2): 194-201. (in Chinese with English abstract).
Xiao L, Xu Y G, Chuang S L, et al. 2003. Chemostratigraphic correlation of upper Permian lava succession form Yunnan Province, China: Extene of Emeishan large igneous province [J]. International Geology Review, 45: 753-766.
Adrian P. Jones. 2005. Meteorite Impacts as Triggers to Large Igneous Provinces [J]. ELEMENTS, VOL. 1, pp. 277-281.