静力触探在莱州湾冰后期三角洲层序地层学研究中的应用     

徐建国  刘中业  陶有兵  徐华  纪汶龙  张春池 《地球学报》2022,43(1):11-24

静力触探试验是广泛应用于海岸带地区岩土工程勘察的原位测试手段,静探数据的连续性、高分辨率在其应用于晚第四纪地层结构研究中具有独特的优势.本文对莱州湾沿岸249个工程地质孔-静力触探孔组的岩性编录资料与静探参数资料进行对比研究,建立了冰后期沉积不同沉积相的静探参数曲线识别模式,以此为基础配合14C测年、微体古生物鉴定等资...  相似文献   

Early and late Holocene glacial fluctuations and tephrostratigraphy,Cabin Lake,Alaska     

PAUL D. ZANDER  DARRELL S. KAUFMAN  STEPHEN C. KUEHN  KRISTI L. WALLACE  R. SCOTT ANDERSON 《第四纪科学杂志》2013,28(8):761-771

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HISTORICAL GEOLOGY & STRATIGRAPHY     

《Abstract of Chinese Geological Literature》2014,(2)

正20140985Chen Liang(Post-Doctoral Research Station of Mining Engineering,School of Nuclear Resources and Nuclear Fuel Engineering,University of South China,Heng-yang 421001,China);Huang Wei Composition of Major and Correlated Elements with Organic Matters and Paleoclimatic Implication for Lower Paleogene Sediments in Sanshui Basin  相似文献   

KEYWORDS INDEX     

《Abstract of Chinese Geological Literature》2014,(2)

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Stratigraphy and correlation of Carboniferous ignimbrites,Rocky Creek region,Tamworth Belt,Southern New England Orogen,New South Wales     

《Australian Journal of Earth Sciences》2013,60(6):931-954

Carboniferous (Visean to Westphalian) pyroclastics and lava flows in the Rocky Creek region, used to redefine the base of the Kiaman reversal, are formally defined or redefined and the status of the main formations clarified. These units include the Caroda Formation, containing the Kooringal Dacite, Boomi Rhyolite and Barney Springs Andesite Members; the Clifden Formation with the Wanganui Andesite, Glen Idle Rhyolite, Appleogue Dacite, Bexley Rhyolite, Pine Cliffs Rhyolite and Downs Rhyodacite Members; Rocky Creek Conglomerate with the Hazelvale Rhyodacite, Mt Hook Rhyolite, Darthula Rhyodacite and Pound Rock Rhyodacite Members; and Lark Hill Formation with the Eulowrie Pyroclastic, Tycannah Rhyodacite and The Tops Rhyolite Members; a number of informal units are also described. The restriction of most volcanic units to one of the three thrust blocks (Boomi, Kathrose and Darthula blocks) of the Rocky Creek region, suggests their current relationships reflect either shortening due to overthrusting or an original distribution affected by depositional or erosional processes. A westerly increase in the proportion of ignimbrites indicates nearness to sources in that direction. Intermediate volcanism, largely confined to southern and central parts of the Boomi block in the east, began in the Visean and ended in the early Namurian. Acid volcanism also began in the Visean in the northern Boomi block but, with the exception of the Peri Rhyolite Member of the Clifden Formation, did not become widespread until later in the Namurian and Westphalian. In contrast, only acid volcanism took place during the early Namurian to Westphalian in the Kathrose and Darthula blocks. Correlations based on AS3 and SL13 SHRIMP dates illustrate a discordance of about 3% when compared with the most likely location for the base of the Kiaman reversal. The bases of both the Rocky Creek Conglomerate and Lark Hill Formation appear to be slightly diachronous.  相似文献   

东海陆架盆地瓯江凹陷古近系层序地层学与沉积特征研究     

赵英杰  郭艳东 《海洋地质译丛》2010,(4):15-19,31

应用层序地层学方法,通过钻井、测井、地震反射等标志,识别出层序界面和最大海泛面,将东海陆架盆地瓯江凹陷古近系划分为3个层序,层序界面分别为T20、T40、T42、T50,并以地层叠置样式、岩性、岩相的变化为依据在单井上将每个三级层序细分为低位、湖侵和高位3个体系域;在层序格架内利用钻井和古生物资料分析了沉积体系在瓯江凹陷的平面展布：月桂峰组主要是三角洲相和湖泊相沉积,灵峰组和明月峰组是三角洲相和滨海相沉积,瓯江组和温州组为三角洲相和滨海相沉积,其中瓯江凹陷东次凹为浅海相沉积;沉积物源主要以西向东注入和西北方向向东南注入,同时揭示了古近系两次大规模海侵分别是古新世中期灵峰组沉积时期和始新世中期瓯江组沉积时期。  相似文献   

普光气田飞仙关组层序特征及有利储层分析     

肖梦华  姜建伟  王化鸽  王琪  王芳 《海洋地质译丛》2010,(4):50-55

为了对普光气田主体碳酸岩沉积体系和各种微相特征深入研究,建立区域地层格架,对普光气田主体井层序界面进行识别与划分。研究表明：主要发育有升隆侵蚀层序不整合面、海侵上超层序不整合面、水下沉积间断层序不整合面、局部暴露层序不整合界面和岩性岩相转换界面等五种三级层序界面,同时发育岩性的突变面、沉积相转换面、GR值正向漂移和成岩作用变化等四种四级层序界面。普光102-1井下三叠统飞仙关组可划分为一个二级层序、两个三级层序和九个四级层序,并对其中可作为有利储层的层序进行分析。  相似文献   

Triassic seismic sequence stratigraphy and paleogeography of the western Barents Sea area   总被引：2，自引：0，他引：2  

Evy Glørstad-Clark  Jan Inge Faleide  Bjørn Anders Lundschien  Johan Petter Nystuen 《Marine and Petroleum Geology》2010

A sequence stratigraphic framework of the Triassic on the Norwegian Barents shelf is presented. The Triassic succession was subdivided into five second-order sequences based on facies analysis of 2D seismic data constrained by well data. The sequences were separated by maximum flooding surfaces that correlate seismically for hundreds of kilometers.  相似文献   

北波拿巴盆地构造演化与层序地层学     

龚承林  王英民  崔刚  郎淑敏  官宝聪  周兴海 《海洋地质与第四纪地质》2010,(2)

北波拿巴盆地油气资源十分丰富,是具有重要价值的战略远景区,其构造演化模式和层序地层学发育样式具有一定的特殊性。通过对北波拿巴盆地的地震资料、钻、测井资料和岩心资料的综合研究,分析北波拿巴盆地的构造演化模式和层序地层学发育样式,提出了陆裾转换不整合和俯冲碰撞不整合的划分依据和识别标志。  相似文献   

Phanerozoic stratigraphy and structure of the northern Barrier Ranges,western New South Wales     

G. Neef  R. S. Bottrill  A. Ritchie 《Australian Journal of Earth Sciences》2013,60(6):557-570

Devonian strata near Fowlers Gap and Nundooka Stations, northern Barrier Ranges comprise ～2.7 km of sparsely fossiliferous, fluvially deposited sandstones (Mulga Downs Group). These strata are subdivided into the Coco Range Sandstone (oldest, Emsian‐Eifelian) found west of the north‐trending Nundooka Creek Fault, and the Nundooka Sandstone (youngest, ?Frasnian‐Famennian found east of the fault). Eleven stratigraphic units are mapped and two of these in the Coco Range Sandstone are formally named as The Valley Tank Arenite and Copi Dam Arenite Members. The Coco Range Sandstone and Nundooka Sandstone are tentatively correlated with strata in the Bancannia Trough. Deposition of the Coco Range Sandstone and Nundooka Sandstone was, however, separate from that of the Bancannia Trough, probably due to topographic highs which occurred east of the Western Boundary Fault.

The Coco Range Sandstone is cut by northeast‐trending faults splaying from the Nundooka Creek Fault. These faults have vertical planes and are thought to predate deposition of the Nundooka Sandstone. In the Late Cretaceous the Nundooka Creek and Western Boundary Faults became active and areas west of these faults were uplifted to form Coco Range and Bald Hill. This fossil landscape was progressively buried by deposition of the Palaeocene‐Eocene Eyre Formation until it was half covered by strata. During the Oligocene silcrete of the Cordillo Surface formed and was overlain conformably by the sandy Doonbara Formation (Miocene). Since the Miocene, much of the Eyre Formation has been removed by erosion to exhume a Late Cretaceous landscape. Subsequently in the ?Pliocene there was some faulting along the Nundooka Creek and Western Boundary Faults because locally the Cordillo Surface and the Doonbara Formation dip toward the faults at 30–72°. At three localities there is evidence of probable Quaternary activity on the Nundooka Creek and the Western Boundary Faults (downthrow to the east) suggesting a different style of tectonics from that in the Miocene.  相似文献