Abstract：During the Exxon Time for sequence stratigraphy,as the first important conceptual progress,it was proposed that the continental sequence is usually formed in a rising period within a base-level changing cycle under the conceptual system of the subaerial unconformity that makes up the sequence boundary. The continental sequence is characterized by amalgamated and isolated fluvial channel sandstones, with grain size fining upward. However,there are many conceptual inconsistencies for the continental sequence stratigraphy especially for the division of system tracts,such as the transgressive system tract or the high-stand system tract,which were resulted from the interpretation of marine “conventional”system tracts. The “unconventional”system tracts for the continental sequence are established under this situation,i.e. the high accommodation and the low accommodation system tracts,which might represent the second conceptual advancement of the continental sequence stratigraphy. More importantly,although the major sedimentation occurred during the ascending period of base-level like marine strata,deposits may be formed within the descending period of base-level,which further reflects the complicated sediment accumulation and its response mechanism of a continental sequence,as well as its variability. The characteristics mentioned above have become one of the focal points in recent years.It is very meaningful for tracing both the changes and progresses of the conceptual systems for the continental sequence stratigraphy,and is very favorable for further understanding of the sophisticated forming process of the continental sequences,which represents a significant advancement on the study of sequence stratigraphy.
Yao Yao,Mei Chaojia. The composition of “unconventional”system tracts within the continental sequence: An important advancement on sequence stratigraphy[J]. JOPC, 2017, 19(3): 513-524.
[1] 冯志强,张顺,付秀丽. 2012. 松辽盆地姚家组—嫩江组沉积演化与成藏响应. 地学前缘,19(1): 78-88. [Feng Z Q,Zhang S,Fu X L. 2012. Depositional evolution and accumulation response of Yaojia-Nenjiang Formation in Songliao Basin. Earth Science Frontiers,19(1): 78-88] [2] 郭荣涛,陈留勤,霍荣. 2012.21世纪初期层序地层学发展的新方向. 地层学杂志,36(4): 747-754. [Guo R T,Chen L Q,Huo R. 2012. New trends of sequence-stratigraphy in the Early 21 st Century. Journal of Stratigraphy,36(4): 747-754] [3] 郭巍,刘招君,董惠民,赵羽军. 2004. 松辽盆地层序地层特征及油气聚集规律. 吉林大学学报(地球科学版),34(2): 216-221. [Guo W,Liu Z J,Dong H M,Zhao Y J. 2004. The sequence stratigraphic features and hydrocarbon accumulation of Songliao Basin. Journal of Jilin University(Earth Science Edition),34(2): 216-221] [4] 黄清华,吴怀春,万晓樵,贺怀宇,邓成龙. 2011. 松辽盆地白垩系综合年代地层学研究新进展. 地层学杂志,35(3): 250-257. [Huang Q H,Wu H C,Wan X Q,He H Y,Deng C L. 2011. New progress of integrated chronostratigraphy of the Cretaceous in Songliao Basin. Journal of Stratigraphy,35(3): 250-257] [5] 黄薇,张顺,张晨晨,魏巍. 2013. 松辽盆地嫩江组层序构型及其沉积演化. 沉积学报,31(5): 920-927. [Huang W,Zang S,Zhang C C,Wei W. 2013. Sequence configuration and sedimentary evolution of Nenjiang Formation in the Songliao Basin. Acta Sedimentologica Sinica,31(5): 920-927] [6] 林畅松. 2009. 沉积盆地的层序和沉积充填结构及过程响应. 沉积学报,27(5): 849-862. [Lin C S. 2009. Sequence and depositional architecture of sedimentary basin and process responses. Acta Sedimentologica Sinica,27(5): 849-862] [7] 林春明,冯志强,张顺,赵波,卓弘春,李艳丽,薛涛. 2007. 松辽盆地北部白垩纪超层序特征. 古地理学报,9(6): 619-634. [Lin C M,Feng Z Q,Zhang S,Zhao B,Zhuo H C,Li Y L,Xue T. 2007. Characteristics of the Cretaceous supersequences in northern Songliao Basin. Journal of Palaeogeography(Chinese Edition), 9(6): 619-634] [8] 刘招君. 2002. 陆相层序地层学导论与应用. 北京: 石油工业出版社,1-178. [Liu Z J. 2002. Continental Sequence Stratigraphic Theory and Application. Beijing: Petroleum Industry Press,1-178] [9] 梅冥相. 2010a. 从正常海退与强迫型海退的辨别进行层序界面对比: 层序地层学进展之一. 古地理学报,12(5): 549-564. [Mei M X. 2010a. Correlation of sequence boundaries according to discerning between normal and forced regressions: The first advance in sequence stratigraphy. Journal of Palaeogeography(Chinese Edition),12(5): 549-564] [10] 梅冥相. 2010b. 长周期层序形成机制的探索: 层序地层学的进展之二. 古地理学报,12(6): 711-728. [Mei M X. 2010b. Research on forming mechanism of long-term sequence: The second advance in sequence stratigraphy. Journal of Palaeogeography(Chinese Edition),12(6): 711-728] [11] 梅冥相. 2011a. 从不整合面复杂的地质涵义窥视层序地层学的诞生: 层序地层学重要的科学命题之一. 地层学杂志,35(2): 179-192. [Mei M X. 2011a. Understanding the birth of sequence stratigraphy through the complex geological meanings of unconformity: The first important scientific problem in sequence stratigraphy. Journal of Stratigraphy,35(2): 179-192] [12] 梅冥相. 2011b. 从旋回的有序叠加形式到层序的识别和划分: 层序地层学进展之三. 古地理学报,13(1): 37-54. [Mei M X. 2011b. from vertical stacking pattern of cycles to discerning and division of sequences: The third advance in sequence stratigraphy. Journal of Palaeogeography(Chinese Edition),13(1): 37-54] [13] 梅冥相. 2012. 沉积层序形成机制的海平面变化解释: 层序地层学的重要科学命题之二. 地层学杂志,36(4): 792-806. [Mei M X. 2012. Interpretation of sea-level changes from the genetic stratigraphy of depositional sequences: The second important scientific problem in sequence-stratigraphy. Journal of Stratigraphy,36(4): 792-806] [14] 梅冥相. 2014a. 层序地层学发展历程中的3个误判. 地学前缘,21(2): 67-80. [Mei M X. 2014a. Threemisreading during the developing course of sequence stratigraphy. Earth Science Frontiers,21(2): 67-80] [15] 梅冥相. 2014b. 上扬子地区晚三叠世层序地层格架: 扬子地台消亡与上扬子前陆盆地形成的地层学效应. 地质学报,88(10): 1944-1969. [Mei M X. 2014b. the sequence-stratigraphic framework of the Late Triassic in the Upper Yangtze Region,South China: Stratigraphic forcing for the death of the Yangtze Platform and the birth of the Upper-Yangtze Foreland Basin. Acta Geologica Sinica,88(10): 1944-1969] [16] 梅冥相. 2015. 从沉积层序到海平面变化层序: 层序地层学的一个重要的新进展. 地层学杂志,39(1): 58-73. [Mei M X. 2015. Conceptual change from depositional sequences to eustatic sequences: An important development in sequence stratigraphy. Journal of Stratigraphy,39(1): 58-73] [17] 梅冥相,刘少峰. 2013. 基于陆生植被对河流沉积作用的影响论上三叠统须家河组的冲积构架: 以重庆永川普安剖面为例. 古地理学报,15(2): 143-154. [Mei M X,Liu S F. 2013. Discussion of alluvial architecture for the Upper Triassic Xujiahe Formation in terms of sedimentological impact of terrestrial vegetation on fluvial sedimentation: A case study at Pu'an section in Yongchuan of Chongqing. Journal of Palaeogeography(Chinese Edition),15(2): 143-154] [18] 梅冥相,苏德辰. 2014a. 甘肃张掖地区白垩系风成砂岩沉积序列: 祁连山白垩纪隆升的沉积学响应. 古地理学报,16(2): 143-156. [Mei M X,Su D C. 2014a. Cretaceous sedimentary succession of eolian sandstones in Zhangye Region of Gansu Province: Sedimentological response to the Cretaceous uplift of Qilian Mountains. Journal of Palaeogeography(Chinese Edition),16(2): 143-156] [19] 梅冥相,苏德辰. 2014b. 甘肃古浪河口群粗碎屑岩系的层序地层序列: 祁连山白垩纪隆升的沉积学响应. 地质论评,60(3): 541-554. [Mei M X,Su D C. 2014b. Sequence-stratigraphic succession for the course clastic rock system of the Hekou Group in the Gulang County of Gansu Province: Sedimentological response to the Cretaceous uplift of the Qilian Mountains. Geological Review,60(3): 541-554] [20] 梅冥相,杨欣德. 2000. 强迫型海退及强迫型海退楔体系域: 对传统Exxon层序地层学模式的修正. 地质科技情报,19(2): 17-21. [Mei M X,Yang X D. 2000. Forced regression and forced regressive wedge system tract: Revision on traditional EXXON model of sequence stratigraphy. Geological Science and Technology Information,19(2): 17-21.]. [21] 莫午零,吴朝东,张顺. 2010. 松辽盆地齐家—古龙凹陷上白垩统嫩江组沉积相地震成像. 古地理学报,12(4): 399-408. [Mo W L,Wu C D,Zhang S. 2010. Seismic imaging of sedimentary facies of the Upper Cretaceous Nenjiang Formation in Qijia-Gulong Sag of SongliaoBasin. Journal of Palaeogeography(Chinese Edition),12(4): 399-408] [22] 王嗣敏,刘招君,董清水,朱建伟,郭巍. 2000. 陆相盆地层序地层形成机制分析: 以松辽盆地为例. 长春科技大学学报,30(2): 139-144. [Wang S M,Liu Z J,Dong Q S,Zhu J W,Guo W. 2000. The mechanism of formation analysis of continental sequence stratigraphy. Journal of Changchun University of Science and Technology,30(2): 139-144] [23] 吴和源. 2011. 层序地层学研究现状及进展: 模式多样化. 地质科技情报,30(6): 60-65. [Wu H Y. 2011. Review of sequence stratigraphy: Diversification of models. Geological Science and Technology Information,30(6): 60-65] [24] 吴因业,张天舒,张志杰,崔化娟. 2010. 沉积体系域类型、特征及石油地质意义. 古地理学报,12(1): 69-81. [Wu Y Y,Zhang T S,Zhang Z J,Cui H J. 2010. Types and characteristics of depositional systems tract and its petroleum geological significance. Journal of Palaeogeography(Chinese Edition),12(1): 69-81] [25] 谢习农,李思田. 1993. 陆相盆地层序地层研究特点. 地质科技情报,12(1): 22-26. [Xie X N,Li S T. 1993. Characteristics of sequence stratigraphic analysis in terrestrial basin. Geological Science and Technology Information,12(1): 22-26] [26] 谢渊,刘佳铎,王剑,罗建宁,李春玉,王生朗,汪海,李明辉. 2002. 陆相层序地层学研究进展与挑战. 沉积与特提斯地质,22(2): 8-17. [Xie Y,Liu J D,Wang J,Luo J N,Li C Y,Wang S L,Wang H,Li M H. 2002. Current advances and future aspects of continental sequence stratigraphy. Sedimentary Geology and Tethyan Geology,22(2): 8-17] [27] 张顺,付秀丽,张晨晨. 2011. 松辽盆地姚家组—嫩江组地层层序及沉积变化. 沉积与特提斯地质,31(2): 34-42. [Zhang S,Fu X L,Zhang C C. 2011. Stratigraphic sequences and sedimentary evolution in the Yaojia and Nenjiang Formation,Songliao Basin. Sedimentary Geology and Tethyan Geology,31(2): 34-42] [28] Arnott R W C,Zaitlin B A,Potocki D J. 2002. Stratigraphic response to sedimentation in a net-accommodation-limited setting,Lower Cretaceous Basal Quartz,south central Alberta. Bulletin of Canadian Petroleum Geology,50(1): 92-104. [29] Boulila S,Galbrun B,Miller K G,Pekar S F,Browning J V,Laskar J,Wright J D. 2011. On the origin of Cenozoic and Mesozoic “third-order”eustatic sequences. Earth-Science Reviews,109: 94-112. [30] Catuneanu O. 2006. Principles of Sequence Stratigraphy. Amsterdam: Elsevier,1-375. [31] Catuneanu O,Abreu V,Bhattacharya J P,Blum M D,Dalrymple R W,Eriksson P G,Fielding C R,Fisher W L,Galloway W E,Gibling M R,Giles K A,Holbrook J M,Jordan R,Kendall C G St C,Macurda B,Martinsen O J,Miall A D,Neal J E,Nummedal D,Pomar L,Posamentier H W,Pratt B R,Sarg J F,Shanley K W,Steel R J,Strasser A,Tucker M E, Winker C. 2009. Toward the standardization of sequence stratigraphy. Earth-Science Reviews,92: 1-33. [32] Catuneanu O,Bhattacharya J P,Blum M D,Dalrymple R W,Eriksson P G,Fielding C R,Fisher W L,Galloway W E,Gianolla P,Gibling M R,Giles K A,Holbrook J M,Jordan R,Kendall C G St C,Macurda B,Martinsen O J,Miall A D,Nummedal D,Posamentier H W,Pratt B R,Shanley K W,Steel R J,Strasser A, Tucker M E. 2010. Sequence stratigraphy: Common ground after three decades of development. First Break,28: 21-34. [33] Catuneanu O,Galloway W E,Kendall C G St C,Miall A D,Posamentier H W,Strasser A, Tucker M E. 2011. Sequence stratigraphy: Methodology and nomenclature. Newsletters on Stratigraphy,44(3): 173-245. [34] Feng Z Q,Zhang S,Timothy A C,Feng Z H,Xie X N,Zhao B,Fu X L,Wang C S. 2010. Lacustrine turbidite channels and fans in the Mesozoic Songliao Basin,China. Basin Research,22: 96-107. [35] Gibling M R,Tandon S K,Sinha R,Jain M. 2005. Discontinuity-bounded alluvial sequence of the southern Gangetic Plains,India: Aggradation and degradation in response to monsoonal strength. Journal of Sedimentary Research,75(3): 369-385. [36] Helland-Hansen W,Gjelberg J. 1994. Conceptual basis and variability in sequence stratigraphy: A different perspective. Sedimentary Geology,92: 1-52. [37] Helland-Hansen W,Martinsen O J. 1996. Shoreline trajectories and sequences: Description of variable depositional-dip scenarios. Journal of Sedimentary Research,66: 670-688. [38] Hunt D,Tucker M. 1992. Stranded parasequences and the forced regressive wedge systems tract: Deposition during base level fall. Sedimentary Geology,81: 1-9. [39] Kerr D R,Ye L M,Bahar A,Kelkar B M,Montgomery S L. 1999. Glenn Pool field,Oklahoma: A case of improved prediction from a mature reservoir. AAPG Bulletin,83(1): 1-18. [40] Leckie D A,Wallace-Dudley K E,Vanbeselaere N A,James D P. 2004. Sedimentation in a low-accommodation setting: Nonmarine(Cretaceous)Mannville and marine(Jurassic)Ellis Groups,Manyberries Field,southeastern Alberta. AAPG Bulletin,88: 1391-1418. [41] Martinsen O J,Ryseth A,Helland-Hansen W,Flesche H,Torkildsen G,Idil S. 1999. Stratigraphic base level and fluvial architecture: Ericson Sandstone(Campanian),Rock Springs Uplift,SW Wyoming,USA. Sedimentology,46(2): 235-263. [42] Mei M X,Liu S F. 2017. The Late Triassic sequence-stratigraphic framework of the Upper Yangtze Region,South China. Acta Geologica Sinica,91(1): 51-75. [43] Mitchum R,Vail P,Thompson S. 1977. Seismic stratigraphy and global changes in sea-level,part 2: The depositional sequence as a basic unit for stratigraphic analysis. In: Payton C(ed). Seismic Stratigraphy: Applications to Hydrocarbon Exploration. Tulsa: AAPG Memoir,26: 53-62. [44] Olsen T,Steel R,Hogseth K,Skar T,Roe S. 1995. Sequential architecture in a fluvial succession: Sequence stratigraphy in the Upper Cretaceous Mesaverde Group,Price Canyon,Utah. Journal of Sedimentary Research,65(2b): 265-280. [45] Payton C. 1977. Seismic stratigraphy: Applications to hydrocarbon exploration. Tulsa: AAPG Memoir, 26: 1-516. [46] Posamentier H W,Jervey M T,Vail P R. 1988. Eustatic controls on clastic deposition Ⅰ-conceptual framework. In: Wilgus C K,Hastigs B S,Kendall C G St C,Posamentier H W,Ross C A, van Wagoner J C(eds). Sea-level Change: An Integrated Approach. Tulsa: SEPM Special Publication,42: 109-124. [47] Roca X,Nadon G C. 2007. Tectonic control on the sequence stratigraphy of nonmarine retroarc foreland basin fills: Insights from the Upper Jurassic of central Utah,U.S.A. Journal of Sedimentary Research,77(3): 239-255. [48] Shanley K W,McCabe P J. 1994. Perspectives on the sequence stratigraphy of continental strata. AAPG Bulletin,78(4): 544-568. [49] Shanley K W,McCabe P J,Hettinger R D. 1992. Tidal influence in Cretaceous fluvial strata from Utah,USA: A key to sequence stratigraphic interpretation. Sedimentology,39(5): 905-930. [50] Sloss L,Krumbein W,Dapples E. 1949. Integrated facies analysis.GSA Memoir,39: 91-124. [51] van Wagoner J C,Posamentier H W,Mitchum R M,Vail P R,Sarg J F,Loutit T S, Hardenbol J. 1988. An overview of the fundamentals of sequence stratigraphy and key definitions. In: Wilgus C K,Hastigs B S,Kendall C G St C,Posamentier H W,Ross C A, van Wagoner J C(eds). Sea-level Changes: An Integrated Approach. Tulsa: SEPM Special Publication,42: 39-45. [52] Wilgus C K,Hastings B S,Posamentier H,van Wagoner J C,Ross C V,Kendall C G St C. 1988. Sea-level Changes: An Integrated Approach. Tulsa: SEPM Special Publication, 42: 1-499. [53] Wright V P,Marriott S B. 1993. The sequence stratigraphy of fluvial depositional systems: The role of floodplain sediment storage. Sedimentary Geology,86: 203-210. [54] Zaitlin B A,Warren M J,Potocki D,Rosenthal L,Boyd R. 2002. Depositional styles in a low accommodation foreland setting: An example from the Basal Quartz(Lower Cretaceous),southern Alberta. Bulletin of Canadian Petroleum Geology,50(1): 31-72. [55] Zhang Z L,Sun K Q,Yin J R. 1997. Sedimentology and sequence stratigraphy of the Shanxi Formation(Lower Permian)in the northwestern Ordos Basin,China: An alternative sequence model for fluvial strata. Sedimentary Geology,112: 123-136.
