The Storm Deposits Sedimentary Formation in Upper Ganchaigou Group of Youshashan Oilfield in Qaidam Basin

Abstract:

Base on the observation on the core of the Upper Ganchaigou Group of Youshashan Oilfield in Qaidam Basin (N1) and the analysis into the sedimentary background and structure, as well as previous foundings, the Neogene Period in the River Delta can be found as a-shallow lake deposition environment. The Upper Ganchaigou group in the study area is dominated by sandstone, siltstone, clay rock and little carbonate rocks. The sedimentary structures are rich, and it mainly includes: gutter cast (pocket structure), scour surface and truncated structure, hummocky cross-bedding, lapped bedding, wave bedding and so on. By summing up the above characteristic, this area is thought to have the characteristics of storm deposits, and in accordance with the storm sedimentary sequence, a sedimentary model is established.

• Periodical: Advanced Materials Research (Volumes 779-780)
• Pages: 1376-1378
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.779-780.1376
• Online since: September 2013
• Authors: Rui Tang, You Bin He, Jun Tang, Yong Hou, Yu Zhang, Chun Liao, Jin Lan Wei
• Keywords: Qaidam Basin, Sedimentary Model, Sedimentary Structure, Tempestite, Upper Ganchaigou Group, Youshashan Oilfield

References

[1] Guo Feng, etc, Lacustrine Tempestite Sediment Features of Palepgene, West Tsaidam Basin, Xinjiang Geology, Vol. 29 (2011), pp.125-129.

[2] Kelling G, Mullin P R., Graded limestone and limestone quartzite couplets: possible storm-sediments Pleistocene of Massachusetts, Petrology, Vol. 38 (1975), pp.971-984.

DOI: 10.1016/0037-0738(75)90019-6

[3] Aigner T, Schill tempestite in Oberen Muschelkalk (Trias, SW-deutsch land), Jh. Goel Palaont Aabh, Vol. 157 (1979), pp.326-343.

[4] Ma Zhixin, etc, Sedimentary Characteristics of Tidal Storm Deposit of Early Cambrian Qingxudong Formation in the Zhenyuan Area，Eastern Guizhou and Its Palaeogeographical Implications, Acta Sedimentologica Sinica, Vol. 30 (2012), pp.787-792.

[5] Lei Bianjun, etc, Diagenesis and Pore Strueture of Lower Youshashan Sandstone in Youshashan Oilfield, Chaidamu Basin, Journal of Jianghan Petroleum Institue, Vol. 17 (1995), pp.8-14.

[6] Yuan Jing, Study of tempestite sedimentary of Paleogene in Huimin depression, Journal of China University of Petroleum, Vol. 30 (2006), pp.2-6.

[7] Troels Aagaard, etc, Sediment transport processes and morphodynamics on a reflective beach under storm and non-storm conditions, Marine Geology, (2012), pp.154-165.

DOI: 10.1016/j.margeo.2012.09.004