Arid Fluvial Fandelta-Fluvial Fan Transition: Implications of Huangyangquan Fan Area
-
摘要: 通过地表实地踏勘和浅层探槽解释,结合卫星照片解译,参考第四纪和历史地理研究结果,对准噶尔盆地西北缘黄羊泉扇的沉积特征及其第四纪以来的演变进行了分析.黄羊泉扇是一个发育在内陆干旱地区、以河流沉积为主的河流扇,扇体平面上呈上细下粗的“葫芦型”,可以划分为上扇、中扇和扇缘3个相带,沉积物具有由上扇向扇缘变细的趋势.扇上沉积动力以河流为主,缺乏泥石流沉积,但扇面活动水道不发育,大多数河道为偶尔才有径流通过的暂时性河道,风对扇表面的沉积物有明显的改造作用.黄羊泉扇扇缘发育4种不同的终止方式,一部分进入艾里克湖,一部分终止在沼泽地带,一部分在小型湖泊边缘消失,一部分受地形阻挡终止,与经典冲积扇和扇三角洲都不完全相同.结合前人历史地理研究成果认为第四纪以来黄羊泉扇所在的古玛纳斯湖出现过6次高湖平面,在30 ka以前,黄羊泉扇体一直处于古玛纳斯湖包围中,形成黄羊泉扇三角洲.直到30~10 ka期间才由于湖泊水位下降,扇体逐步出露形成河流扇.研究建立了黄羊泉扇随着湖平面升降从河流扇三角洲不断演化为河流扇的沉积模式,表明黄羊泉扇目前正处于河流扇三角洲沉积体系向河流扇沉积体系演变的过渡阶段.Abstract: This study focuses on the sedimentary characteristics of Huangyangquan fan through field investigation and trench excavation combined with satellite image interpretation and Quaternary geological as well as historical geography analysis. The authors suggest that the Huangyangquan fan is a fluvial fan developed in the inland arid area of northwestern Junggar basin margin, which is a gourd in plan metric shape and can be divided into three parts, namely, upper fan, middle fan and fan margin. The fan is dominated by fluvial deposits but not debris flow deposits. The channel is most of ephemeral with minor intermittent channel. The effect of wind on the sediment of fluvial fan surface is obvious. The fan is terminated in 4 types as into Eric lake, to the marshes, to the shore of small lakes and to an terrain block, these are all different to either of normal alluvial fan or fan deltas.Research shows that the ancient Manas lake appeared six times high level in the Quaternary. Before 30 ka, the fan was surrounded by ancient Manas lake as a fluvial fan delta system, after that time it changed gradually to be an fluvial fan due to the lake level down. The depositional model has been built based the historical geography research results to interpret the evolution of the fan from fluvial fan delta to fluvial fan system, and it shows the present Huangyangquan fan is in the transition period from fan delta to fluvial fan system.
-
Key words:
- fluvial fan /
- fluvial fan delta /
- depositional model /
- Huangyangquan area /
- Manas lake /
- Junggar basin /
- sedimentary geology
-
图 1 黄羊泉扇地质构造位置
a.准噶尔盆地西北缘的构造平面图,绿色方框显示图 1b所在位置;b.玛湖凹陷西北部以及黄羊泉扇构造位置;c.准噶尔盆地西北缘构造剖面
Fig. 1. Structure location of Huangyangquan fluvial fan
图 3 黄羊泉扇的形态与沉积相带分布
根据扇面河道形态和分布可以划分出上扇、中扇和扇缘三个相带.上扇辫状河道受限制较严重,中扇河道不受限制,扇缘河道化不强烈.上扇部分较为狭长,中扇扇面地形平坦开阔,扇缘部分沿径向延伸较短.蓝色线表示图 10各剖面的位置
Fig. 3. Sedimentary facies distribution of Huangyangquan fan
图 8 黄羊泉扇下扇(滨湖)地区地貌与现代沉积特征
a.羊泉扇的东部推进到艾里克湖之中;b.黄羊泉扇部分在小型湖泊前终止(照片中部),部分终止在沼泽中(照片右上角);c.黄羊泉扇西南缘部分地区,水道没有到达小艾里克湖而在离湖泊边缘一段距离消失,扇体在陆上终止;d.黄羊泉扇西部受地形限制突然终止;e.沉积物主要由含砾细砂、粉砂以及泥质沉积构成,含有零星细小砾石颗粒,部分地区滩面分布砾石层,砂泥质沉积分选较差; f.暂时性河道分布的盐沼; g.扇缘湖泊干涸后湖底暴露,沉积的黑色泥质沉积物脱水形成干裂; h.沿着退水水位线可见鱼类残体呈条带状分布
Fig. 8. Geomorphic and sedimentary characteristics of lower Huangyangquan fan (near the lake shore) area
-
Allen, J. R. L., 1965. A Review of the Origin and Characteristics of Recent Alluvial Sediments. Sedimentology, 5(2):89-191. https://doi.org/10.1111/j.1365-3091.1965.tb01561.x Arzani, N., 2005. The Fluvial Megafan of Abarkoh Basin (Central Iran):An Example of Flash-Flood Sedimentation in Arid Lands. Geological Society, London, Special Publications, 251(1):41-59. https://doi.org/10.1144/gsl.sp.2005.251.01.04 Ayinuer, Z., 2010. Analysis on Change Features of Ydrological Elements of Baiyanghe River Basin. Journal of Water Resources Research, 31(3):18-20, 23 (in Chinese with English abstract). Ballance, P. F., 1984. Sheet-Flow-Dominated Gravel Fans of the Non-Marine Middle Cenozoic Simmler Formation, Central California. Sedimentary Geology, 38(1/2/3/4):337-359. https://doi.org/10.1016/0037-0738(84)90085-x Baltzer, F., Purser, B. H., 1990.Modern Alluvial Fan and Deltaic Sedimentation in a Foreland Tectonic Setting:The Lower Mesopotamian Plain and the Arabian Gulf.Sedimentary Geology, 67(3/4):175-197. https://doi.org/10.1016/0037-0738(90)90034-q Blair, T. C., 1987.Sedimentary Processes, Vertical Stratification Sequences, and Geomorphology of the Roaring River Alluvial Fan, Rocky Mountain National Park, Colorado. SEPM Journal of Sedimentary Research, 57:1-18. https://doi.org/10.1306/212f8a8a-2b24-11d7-8648000102c1865d Bull, W. B., 1972. Recognition of Alluvial-Fan Deposits in the Stratigraphic Record. Recognition of Ancient Sedimentary Environments. SEPM (Society for Sedimentary Geology), 16:63-83. https://doi.org/10.2110/pec.72.02.0063 Bull, W.B., 1978. Geomorphic Tectonic Activity Classes of the South Front of the San Gabriel Mountains, California. United States Geological Survey, Contract Report 14-08-001-G-394, Office of Earthquakes, Volcanoes and Engineering, Menlo Park, CA. Dunne, L. A., McPherson, J. G., Shanmugam, G., et al., 1988. Fan-Deltas and Braid Deltas:Varieties of Coarse-Grained Deltas:Discussion and Reply. Geological Society of America Bulletin, 100(8):1308-1310. https://doi.org/10.1130/0016-7606(1988)1001308:fdabdv>2.3.co; 2 doi: 10.1130/0016-7606(1988)1001308:fdabdv>2.3.co;2 Eyles, N., Kocsis, S., 1988. Sedimentology and Clast Fabric of Subaerial Debris Flow Facies in a Glacially-Influenced Alluvial Fan.Sedimentary Geology, 59(1/2):15-28. https://doi.org/10.1016/0037-0738(88)90098-x Fielding, C. R., Ashworth, P. J., Best, J. L., et al., 2012. Tributary, Distributary and Other Fluvial Patterns:What Really Represents the Norm in the Continental Rock Record?. Sedimentary Geology, 261-262:15-32. https://doi.org/10.1016/j.sedgeo.2012.03.004 Fisher, J. A., Nichols, G. J., Waltham, D. A., 2007. Unconfined Flow Deposits in Distal Sectors of Fluvial Distributary Systems:Examples from the Miocene Luna and Huesca Systems, Northern Spain. Sedimentary Geology, 195(1/2):55-73. https://doi.org/10.1016/j.sedgeo.2006.07.005 Fontana, A., Mozzi, P., Marchetti, M., 2014. Alluvial Fans and Megafans along the Southern Side of the Alps. Sedimentary Geology, 301:150-171. https://doi.org/10.1016/j.sedgeo.2013.09.003 Friis, H., 1997. Terrigenous Clastic Depositional Systems. Application to Fossil Fuel and Groundwater Resources. Sedimentary Geology, 112(1/2):158-159. https://doi.org/10.1016/s0037-0738(97)00032-8 Gong, Q.S., Huang, G.P., Ni, G.H., et al., 2010. Characteristics of Alluvial Fan in Baikouquan Formation of Wuerhe Oil Field in Junggar Basin and Petroleum Prospecting Significance. Acta Sedimentologica Sinica, 28(6):1135-1144 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cjxb201006011 Hartley, A. J., Weissmann, G. S., Bhattacharyya, P., et al., 2013. Soil Development on Modern Distributive Fluvial Systems:Preliminary Observations with Implications for Interpretation of Paleosols in the Rock Record. New Frontiers in Paleopedology and Terrestrial Paleoclimatology:Paleosols and Soil Surface Analog Systems. SEPM (Society for Sedimentary Geology), 104:149-158. https://doi.org/10.2110/sepmsp.104.10 Hartley, A. J., Weissmann, G. S., Nichols, G. J., et al., 2010. Large Distributive Fluvial Systems:Characteristics, Distribution, and Controls on Development. Journal of Sedimentary Research, 80(2):167-183. https://doi.org/10.2110/jsr.2010.016 Hartley, A. J., Weissmann, G. S., Scuderi, L.A., 2017. Controls on the Apex Location of Large Deltas. Journal of the Geological Society, 174(1):10-13. https://doi.org/10.1144/jgs2015-154 Harvey, A. M., 1987. Alluvial Fan Dissection: Relationships between Morphology and Sedimentation. In: Frostick, L., Reid, I., eds., Desert Sediments: Ancient and Modern. Geological Society Special Publication, 35: 87-103. https: //doi.org/10.1144/GSL.SP.1987.035.01.07 Harvey, A. M., 2012. The Coupling Status of Alluvial Fans and Debris Cones:A Review and Synthesis.Earth Surface Processes and Landforms, 37(1):64-76. https://doi.org/10.1002/esp.2213 He, D.F., Yin, C., Du, S.K., et al., 2004. Characteristics of Structural Segmentation of Foreland Thrust Belts-Case Study of the Fault Belts in the North Western Margin of Junggar Basin. Earth Science Frontiers, 11(3):91-101 (in Chinese with English abstract). Holmes, A., 1965. Principles of Physical Geology. Ronald Press, New York, 1288. https://doi.org/10.1016/0033-5894(79)90065-6 Lei, D.W., Lu, H.T., Liu, Z.Y., et al., 1998. Prediction of Alluvial Fan Reservoir on Slope in Northwestern Margin of Junggar Basin. Xinjiang Petroleum Geology, 19(6):470-472 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199800936824 Li, Z.X., Song, G.Z., Wang, D.D., et al., 2018. Characteristics of (Fan) Braided River Delta in Oligocene Coal Measures of Qiongdongnan Basin. Earth Science, 43(10):3471-3484 (in Chinese with English abstract). http://d.old.wanfangdata.com.cn/Periodical/dqkx201810011 Lin, R.F., Wei, K.Q., Cheng, Z.Y., et al., 1996. A Palaeoclimatic Study on Lacustrine Cores from Manas Lake, Xinjiang, Western China. Geochimica, 25(1):63-72 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199600048544 Lu, G., Wang, L.L., Zhang, K., et al., 1987. Characteristics of Tectonic Evolution and Prospect of Petroleum Exploration in Northwestern Junggar Basin. Petroleum Expoloration and Development, 14(1):10-19 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SKYK198701001.htm Lv, H.H., 2013. Analysis of Geomorphic Features and Evolution of Baiyanghe River in West Junggar, Xinjiang, China.Ludong University, Yantai (in Chinese with English abstract). Nemec, W., 1990. Deltas-Remarks on Terminology and Classification. In: Coarse-Grained Deltas. Blackwell Publishing Ltd., Oxford, 1-12. https: //doi.org/10.1002/9781444303858.ch1 Nemec, W., Steel, R J., 1988. What is a Fan-Delta and How do We Recognize it?. In: Nemec, W., Steel, R.J., eds., Fan Deltas: Sedimentology and Teclonic Settings. Blackie, London, 11-17. Owen, A., Hartley, A. J., Weissmann, G. S., et al., 2016. Uranium Distribution as a Proxy for Basin-Scale Fluid Flow in Distributive Fluvial Systems. Journal of the Geological Society, 173(4):569-572. https://doi.org/10.1144/jgs2016-007 Quartero, E. M., Leier, A. L., Bentley, L. R., et al., 2015. Basin-Scale Stratigraphic Architecture and Potential Paleocene Distributive Fluvial Systems of the Cordilleran Foreland Basin, Alberta, Canada. Sedimentary Geology, 316:26-38. https://doi.org/10.1016/j.sedgeo.2014.11.005 Ran, L., 2010. Impact of Climate Change on Hydrological Regime in the Baiyanghe River Basin in Tacheng, Xinjiang during 1962:2007. Journal of Glaciology and Geocryology, 32(5):921-926 (in Chinese with English abstract). http://d.old.wanfangdata.com.cn/Periodical/bcdt201005009 Rust, B.R. Gostlin, V.A., 1981. Fossil Transverse Ribs in Holocene Alluvial Fan Deposits, Depot Creek, South Australia. SEPM Journal of Sedimentary Research, 51:441-444. https://doi.org/10.1306/212f7c9d-2b24-11d7-8648000102c1865d Shao, Y., Wang, R.F., Zhang, Y.Q., et al., 2011. Strike-Slip Structures and Oil-Gas Exploration in the NW Margin of the Junggar Basin, China. Acta Petrolei Sinica, 32(6):976-984 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=syxb201106007 Shi, X.M., Li, Y.L., Yang, J.C., 2008.Climatic and Tectonic Analysis of Manas Lake Changes. Scientia Geographica Sinica, 28(2):266-271 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dlkx200802024 Shukla, U. K., Singh, I. B., Sharma, M., et al., 2001. A Model of Alluvial Megafan Sedimentation:Ganga Megafan.Sedimentary Geology, 144(3-4):243-262. https://doi.org/10.1016/s0037-0738(01)00060-4 Sui, F.G., 2015. Tectonic Evolution and Its Relationship with Hydrocarbon Accumulation in the Northwest Margin of Junggar Basin. Acta Geologica Sinica, 89(4):779-793 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dizhixb201504010 Tang, Y., Xu, Y., Qu, J.H., et al., 2014. Fan-Delta Group Characteristics and Its Distribution of the Triassic Baikouquan Reservoirs in Mahusag of Junggar Basin.Xinjiang Petroleum Geology, 35(6):628-635 (in Chinese with English abstract). https://www.zhangqiaokeyan.com/academic-journal-cn_xinjiang-petroleum-geology_thesis/0201218626203.html Wang, D. J., 1991. Formation and Evolution of Manas Lake, Xinjiang. Remote Sensing of Environment China, 6(4):247-252, 321 (in Chinese with English abstract). https://www.researchgate.net/publication/291901580_Formation_and_evolution_of_Manas_Lake_Xinjiang Weissmann, G. S., Hartley, A. J., Nichols, G. J., et al., 2010. Fluvial Form in Modern Continental Sedimentary Basins:Distributive Fluvial Systems. Geology, 38(1):39-42. https://doi.org/10.1130/g30242.1 Weissmann, G. S., Hartley, A. J., Nichols, G. J., et al., 2011.Alluvial Facies Distributions in Continental Sedimentary Basins-Distributive Fluvial Systems. SEPM Society for Sedimentary Geology, 327-355. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=CC0212819433 Weissmann, G. S., Hartley, A. J., Scuderi, L. A., et al., 2015. Fluvial Geomorphic Elements in Modern Sedimentary Basins and Their Potential Preservation in the Rock Record:A Review. Geomorphology, 250:187-219. https://doi.org/10.1016/j.geomorph.2015.09.005 Wells, S. G., Harvey, A. M., 1987.Sedimentologic and Geomorphic Variations in Storm-Generated Alluvial Fans, Howgill Fells, Northwest England.Geological Society of America Bulletin, 98(2):182-198. https://doi.org/10.1130/0016-7606(1987)98182:sagvis>2.0.co; 2 doi: 10.1130/0016-7606(1987)98182:sagvis>2.0.co;2 Wu, S.H., Feng, W.J., Yin, S.L., et al., 2016. Research Advances in Alluvial Fan Depositional Architecture. Journal of Palaeogeography, 18(4):497-512. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdlxb201604001 Yu, X.H., Qu, J.H., Tan, C.P., et al. 2014. Conglomerate Lithofacies and Origin Models of Fan Deltas of Baikouquan Formation in Mahusag, Junggar Basin. Xinjiang Petroleum Geology, 35(6):619-627 (in Chinese with English abstract). Zhang, C.S., Lai, Z.Y., Li, C.G., et al., 1995. Alluvial Fan-Fan Delta Deposits of Sha-4 Member in Yonganzhen Oil Field. Earth Science, (1):95-100 (in Chinese with English abstract). http://en.cnki.com.cn/article_en/cjfdtotal-dqkx501.015.htm Zhang, J.Y., 1985. Some Depositional Characteristics and Microfacies Subdivision of Coarse Clastic Alluvial Fans.Acta Sedimentologica Sinica, 3(3):75-85 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-CJXB198503007.htm Zou, N.N., Shi, J.A., Zhang, D.Q., et al., 2015.Fan Delta Depositional Model of Triassic Baikouquan Formation in Mabei Area, NW Junggar Basin. Acta Sedimentologica Sinica, 33(3):607-615 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cjxb201503019 阿依努尔·孜牙别克, 2010.白杨河流域水文要素变化特征分析.水资源研究, 31(3):18-20, 23. http://www.cnki.com.cn/Article/CJFDTotal-SZYY201003009.htm 宫清顺, 黄革萍, 倪国辉, 等, 2010.准噶尔盆地乌尔禾油田百口泉组冲积扇沉积特征及油气勘探意义.沉积学报, 28(6):1135-1144. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cjxb201006011 何登发, 尹成, 杜社宽, 等, 2004.前陆冲断带构造分段特征——以准噶尔盆地西北缘断裂构造带为例.地学前缘, 11(3):91-101. doi: 10.3321/j.issn:1005-2321.2004.03.011 雷德文, 吕焕通, 刘振宇, 等, 1998.准噶尔盆地西北缘斜坡区冲积扇储集层预测与效果.新疆石油地质, 19(6):470-472. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199800936824 李增学, 宋广增, 王东东, 等, 2018.琼东南盆地渐新统煤系(扇)辫状河三角洲特征.地球科学, 43(10): 3471-3484. doi: 10.3799/dqkx.2018.280 林瑞芬, 卫克勤, 程致远, 等, 1996.新疆玛纳斯湖沉积柱样的古气候古环境研究.地球化学, 25(1):63-72. doi: 10.3321/j.issn:0379-1726.1996.01.007 陆钢, 王利利, 张恺, 等, 1987.准噶尔盆地西北缘红山咀-夏子街地区构造演化特征及其含油远景评价.石油勘探与开发, 14(1):10-19. http://www.cnki.com.cn/Article/CJFDTotal-SKYK198701001.htm 吕辉河, 2013.新疆西准噶尔白杨河流域地貌特征及演化分析.烟台: 鲁东大学. http://cdmd.cnki.com.cn/Article/CDMD-10451-1013276933.htm 冉玲, 朱海江, 阿依努尔·孜牙别克, 2010.1962-2007年新疆塔城白杨河流域气候变化对水文情势的影响.冰川冻土, 32(5):921-926. http://d.old.wanfangdata.com.cn/Periodical/bcdt201005009 邵雨, 汪仁富, 张越迁, 等, 2011.准噶尔盆地西北缘走滑构造与油气勘探.石油学报, 32(6):976-984. http://d.old.wanfangdata.com.cn/Periodical/syxb201106007 史兴民, 李有利, 杨景春, 2008.新疆玛纳斯湖变迁的气候和构造分析.地理科学, 28(2):266-271. doi: 10.3969/j.issn.1000-0690.2008.02.024 隋风贵, 2015.准噶尔盆地西北缘构造演化及其与油气成藏的关系.地质学报, 89(4):779-793. doi: 10.3969/j.issn.0001-5717.2015.04.010 唐勇, 徐洋, 瞿健华, 等, 2014.玛湖凹陷百口泉组扇三角洲群特征及分布.新疆石油地质, 35(6):628-635. http://d.old.wanfangdata.com.cn/Periodical/xjsydz201406002 王道经, 1991.玛纳斯湖的形成和演变.环境遥感, 6(4):247-252, 321. http://www.cqvip.com/QK/92457A/199104/695215.html 于兴河, 瞿健华, 谭程鹏, 等, 2014.玛湖凹陷百口泉组扇三角洲砾岩岩相及成因模式.新疆石油地质, 35(6):619-627. http://d.old.wanfangdata.com.cn/Periodical/xjsydz201406001 张春生, 赖志云, 李春光, 等, 1995.永安镇油田沙四段冲积扇-扇三角洲沉积.地球科学, (1):95-100. http://www.earth-science.net/article/id/287 张纪易, 1985.粗碎屑洪积扇的某些沉积特征和微相划分.沉积学报, 3(3):75-85. http://www.cnki.com.cn/Article/CJFDTotal-CJXB198503007.htm 邹妞妞, 史基安, 张大权, 等, 2015.准噶尔盆地西北缘玛北地区百口泉组扇三角洲沉积模式.沉积学报, 33(3):607-615. http://d.old.wanfangdata.com.cn/Periodical/cjxb201503019