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首页> 外文会议>Annual meeting of the Clay Minerals Society >Fe-BEARING CLAYS FROM THE CRETACEOUS (APTIAN) LOWER GREENSANDISLE OF WIGHT GREENSAND, SOUTHERN ENGLAND
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Fe-BEARING CLAYS FROM THE CRETACEOUS (APTIAN) LOWER GREENSANDISLE OF WIGHT GREENSAND, SOUTHERN ENGLAND

机译：Fe-ubious粘土从白垩纪（APTIAN）南方南部陶氏体的下绿洲和陶器

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Numerous episodes of erosion, deposition and faunal colonization reflect condensation and abandonment of surfaces in the Aptian -Albian of the Lower Greensand of Southern England. These surfaces form a range of baffles and barriers (seals) to fluid-flow that cap reservoir-quality sands. The mineralogy and physical properties of a sample set were examined to evaluate them as a model for reservoir compartmentalization for petroleum exploration and production. Effective seals do not have to be formed during deposition of thick offshore marine shale successions during the highstand systems tract. Good local and regional seals can be created during the transgressive systems tract, capping reservoir intervals, in nonmarine, shoreface and offshore successions. The interval studied (~200 m thick) contains a diverse assemblage of Fe-bearing clays. In the Fe-bearing illite-smectite (I-S) series (glauconitic to nontronitic) expandability ranges from near zero to over 90 percent S. I-S often coexists in mixtures with or without kaolinite, berthieriene, chlorite, discrete illite or mica, and possibly other mixed-layer clay types. The clays studied originated primarily from glaucony pellets. The diversity of clays from such green sands has implications for the formation and origin and growth of these glaucony clays.
机译：许多侵蚀剧集，沉积和群道殖民反映了南方南部的植物和albian的凝结和遗弃。这些表面形成一系列挡板和屏障（密封件），以流体流动的盖子储层质量砂。研究了样品集的矿物学和物理性质，以评估其作为石油勘探和生产的储层舱位化模型。在高层系统道路中沉积厚的海上海洋页岩次数期间，不必形成有效的密封。在违规系统道，封盖储层间隔，非甲状腺，落地和海上继承中，可以创建良好的本地和区域密封。研究的间隔（〜200米厚）含有多样化的Fe承载粘土。在Fe-usting illite-蒙脱石（IS）系列（青光素到非旋翼）膨胀性从零接近到超过90％的S.通常在具有或没有高岭石，BerthierieNe，亚氯酸盐，离散的Iffete或云母的混合物中共存，并且可能其他混合层粘土类型。研究的粘土主要来自青光颗粒。来自这种绿色沙子的粘土的多样性对这些青光粘土的形成和起源和生长产生了影响。

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