1. School of Geosciences, Yangtze University, Jingzhou, 434023, China; 2. School of Land Resource Engineering, Kunming University of Science and Technology, Kunming, 6500693, China; 3. Petroleum Production and Research Institute of SINOPEC, Beijing, 100083, China
Abstract We are glad to know that our paper ��Review of research in internal-wave and internal-tide deposits of China�� (Gao et al., 2013) published in Journal of Palaeogeography has attracted close attention of international peers, and we noted that Shanmugam has provided a critical assessment of our paper. He claimed that ��interpretations of ten ancient examples in China and one in the central Appalachians (USA) as deep-water deposits of internal waves and internal tides are unsustainable��, among many other comments and criticisms, and he concluded that ��any interpretation of ancient strata as deposits of internal waves and internal tides is premature��. This article is aimed at responding to his major criticisms. We believe that constructive discussions will benefit the development of the study in internal-wave and internal-tide deposits. Unfortunately, Shanmugam seems not to follow this line of scientific criticism, but is trying to reject all research results in this subject based on his illogical and inconsistent reasoning, and distortion of others�� points of view. In this article, with facts and evidences, we will refuse the main wrong assertions of Shanmugam��s, for example, ��the use of bidirectional cross-bedding as evidence for deposition by baroclinic currents in outcrop studies is sedimentologically erroneous �� and ��any interpretation of ancient strata as deposits of internal waves and internal tides is premature��. We will also use typical characteristics of the ancient examples to demonstrate that they are certainly not turbidites, or contourites, or tsunami-related deposits, but internal-wave and internal-tide deposits as the most plausible to defend the rationality of our interpretation in our previous papers.
Fund:This research was supported by the China National Natural Science Foundation (Nos. 40672071 and 41072086) and the Research Fund for the Doctoral Program of Higher Education in China (No. 20104220110002). We express our sincerest gratitude to Prof. Zeng-Zhao Feng and an anonymous reviewer for their constructive comments.
Zhen-Zhong Gao,You-Bin He,Xiang-Dong Li et al. Reply to Shanmugam, G. ��Review of research in internal-wave and internal-tide deposits of China: Discussion��[J]. , 2014, 3(4): 351-358.
Zhen-Zhong Gao,You-Bin He,Xiang-Dong Li et al. Reply to Shanmugam, G. ��Review of research in internal-wave and internal-tide deposits of China: Discussion��[J]. Journal of Palaeogeography, 2014, 3(4): 351-358.
B��denas, B., Aurell, M., 2001. Proximal-distal facies relationships and sedimentary processes in a storm-dominated carbonate ramp (Kimmeridgian, northern Iberian Basin). Sedimentary Geology, 139: 319-340.
B��denas, B., Pomar, L., Aurell, M., Morsilli, M., 2012. A facies model for internalites (internal wave deposits) on a gently sloping carbonate ramp (Upper Jurassic, Ricla, NE Spain). Sedimentary Geology, 271-272: 44-57.
Cacchione, D. A., Grant, W. D., Drake, D. E., Glenn, S. M., 1987. Storm-dominated bottom boundary layer dynamics on the Northern California continental shelf: measurements and predictions. J. Geophys. Res., 92: 1817-1827.
David, A. C., William, C. S., Marlene, N., George T., 1988. Internal tides and sediment movement on Horizon Guyot, Mid-Pacific Mountains. Geo-Marine Letters, 8(1): 11-17.
Du, T., Wu, W., Fang, X. H., 2011.The generation and distribution of ocean internal waves. Marine Science, 25(4): 25-28 (in Chinese with English abstract).
Dykstra, M., 2012. Deep-water tidal sedimentology. In: Davis, R. A. Jr. and Dalrymple, R. W. (eds). Principles of Tidal Sedimentology. Berlin: Springer, 371-395.
Feng, Z. Z., 1982. Sedimentary Rocks. Beijing: Petroleum Industry Press (in Chinese).
Gao, Z. Z., Eriksson, K. A. ,1991. Internal-tide deposits in an Ordovician submarine channel: Previously unrecognized facies? Geology, 19(7): 734-737.
2.3.CO;2 target="_blank">
Gao, Z. Z., Peng, D.T., Liu, X. F., He, Y. B., Fu, X., Li, D. S., Zhong, G. F., 1996. Ordovician internal-tide deposits in TZ30 well, Tarim Basin. Journal of Jianghan Petroleum Institute, 18(4): 9-14 (in Chinese with English abstract).
Gao, Z. Z., He, Y. B., Li, J. M., Li, W. F., Luo, S. S., Wang, Z. Z., 1997. Internal wave deposits are found in China. China Science Bulletin, 42(13): 1113-1117.
Gao, Z. Z., Eriksson, K. A., He, Y. B., Luo, S. S., Guo, J. H., 1998. Deep-Water Traction Current Deposits: A Study of Internal Tides, Internal Waves, Contour Currents and Their Deposits. Science Press/VSP, New York/Utrecht: 1-128.
Gao, Z. Z, He, Y. B, Li, X. D., Duan, T. Z., 2013. Review of research in internal-wave and internal-tide deposits of China. Journal of Palaeogeography, 2(1): 56-65.
Gao, Z. Z., He, Y. B., Zhang, X.Y., Zai, Y. H., Hu, Y.Y., Yang, H. J., Li, X. S., Li, Y., 2000. Internal-wave and internal-tide deposits of the Middle-Upper Ordovician in the Central Tarim Basin. Acta Sedimentologica Sinica, 18(3): 400-407 (in Chinese with English abstract).
Guo, J. Q., Zhang, X. H., Zhang, Z. J., Xie, S. C., Yin, H. F., 2004. First discovery of internal-wave and internal-tide deposits from the Precambrian in northwestern Jiangxi. Chinese Journal of Geology, 39(3): 329-338 (in Chinese with English abstract).
Heckel, P. H., 1972. Recognition of ancient shallow marine environments. In: Rigby, et al., 1972: Recognition of ancient sedimentary environments. SEPM Special Publication, 16: 226-286.
He, Y. B., Gao, Z. Z., Li, J. M., Li, W. F., Luo, S. S., Wang, Z. Z, 1998. Internal-tide deposits of the Late Ordovician in Tonglu, Zhejiang. Acta Sedimentologica Sinica, 16(1): 1-7 (in Chinese with English abstract).
He, Y. B., Gao, Z. Z., Zhang, X. Y., Zai, Y. H., Kuang, H. W., 2003. Internal-tide deposits of the Middle-Upper Ordovician in Well TZ32, Tarim Basin. Journal of Palaeogeography (Chinese Edition), 5(4): 414-425 (in Chinese with English abstract).
He, Y. B., Gao, Z. Z., Guo, C. X., Xu, H., Dong, G. Y., 2005. Study on internal-wave and internal-tide deposits of the third member of the Lower Cambrian Balang Formation at Yangjiaping, Shimen. Chinese Journal of Geology, 32(1): 62-69 (in Chinese with English abstract).
He, Y. B., Gao, Z. Z., Luo, S. S., Peng, D. T., Wang, H. W., Luo, J. X., 2007. Discovery of internal-tide deposits from the third member of Pingliang Formation in Longxian area, Shaanxi Province. Journal of Oil and Gas Technology, 29(4): 28-33 (in Chinese with English abstract).
He, Y. B., Luo, J. X., Li, X. D., Gao, Z. Z., Wen, Z., 2011. Evidence of internal-wave and internal-tide deposits in the Middle Ordovician Xujiajuan Formation of the Xiangshan Group, Ningxia, China. Geo-Marine Letters, 31(5-6): 509-523.
Jin, H. J., Li, Y. C., Fang, G. Q., 2002. Internal-wave and internal-tide deposits in the palaeostratigraphic record of the western Qinling Mountains and their origin. Acta Sedimentologica Sinica, 20(1): 80-84 (in Chinese with English abstract).
Li, X. D., He, Y. B., Wang, D., Gao, Z. Z., Zheng, Z. C., 2009. Internal-wave and internal-tide deposits of the Middle Ordovician Xiangshan Group Xujiajuan Formation, Ningxia. Journal of Palaeogeography (Chinese Edition), 11(5): 513-522 (in Chinese with English abstract).
LaFond, E. C., 1966. Internal waves. In: Fairbridge, R.W. (ed). The encyclopedia of oceanography. Reinhold, New York, 402-408.
Pomar, L., Morsilli, M., Hallock, P., B��denas, B., 2012. Internal waves, an under-explored source of turbulence events in the sedimentary record. Earth-Science Reviews, 111: 56-81.
Pomar, L., Morsilli, M., Hallock, P., B��dena,s B., 2013. Reply to Shanmngam G., Comment on ��Internal waves, an under-explored source of turbulence events in the sedimentary record�� by Pomar et al. [Earth-Science Reviews,111: 56-81], Earth-Science Reviews (2012). Earth-Science Reviews,116: 206-210.
Shanmugam, G., 2000. 50 years of the turbidite paradigm (1950s-1990s): Deep-water processes and facies models �� A critical perspective. Marine and Petroleum Geology, 17: 285-342.
Shanmugam, G., 2012. Discussion of He et al. (2011, Gao-Marine Letters) Evidence of internal-wave and internal-tide deposits in the Middle Ordovician Xujiajuan Formation of the Xiangshan Group, Ningxia, China. Gao-Marine Letters, 32(4): 359-366.
Shanmugam, G., 2013. Modern internal waves and internal tides along oceanic pycnoclines: Challenges and implications for ancient deep-marine baroclinic sands. AAPG Bulletin, 97(5): 799-843.
Shanmugam, G., 2014. Review of research in internal-wave and internal-tide deposits of China: Discussion. Journal of Palaeogeography 3(4): 2-20.
Shepard, F. P., Marshall, N. F., McLoughlin, P. A., Sullivan, G. G., 1979. Currents in submarine canyons and other seavalleys. AAPG Studies in Geology, 8: 1-13.
Shi, S. Q., Wang, Y. C., 2007. Discussion on lithologic seismic exploration. Lithologic Reservoirs, 19(3): 131-134 (Chinese with English abstract).
Wang, P. X., 2009. Deep sea sediments and earth system. Marine Geology and Quaternary Geology, 29(4): 1-11 (Chinese with English abstract).
Walker, R. G., 1985. Geological evidence for storm transportation and deposition on ancient shelves. In: Tillman, R.W., Swift, D. J. P., Walker, R. G. (eds). Shelf Sands and Sandstone Reservoirs. SEPM Short Course No. 13: 243-302.
Xu, Z. T., 1999. Dynamics of internal waves in ocean. Beijing: Science Press, 1-336 (in Chinese)