The late Palaeoproterozoic (Statherian) McArthur Group comprises a thick (5km) sequence of platformal stromatolitic dolostone and clastic sediment with local pyritic,carbonaceous siltstone units. Exposure of the McArthur Group is largely... P Winefield 被引量: 9发表: 1999年 ...
Level strong decency mudstone: The ash brown, makes decent the condition, the dense condition, the core assumes columnarly, the structure part destroys, thin layered appears in turn with the siltstone and the siltstone multi-rhythm, the core assumes slightly massive, the dry boring is slightly ...
aWhose dress is this. 谁的礼服是这。[translate] aThe circuit consisted of LMH6624 op-amps in an I–V 电路在I-V包括了LMH6624操作安培[translate] aAbove the weak immediate roof the strata consisted of siltstones. This was consistent with observations made during a site visit where it was ob...
Sampled beds at both localities are in siltstone, fine grained sandstone, and carbonate concretions in mudstone intervals. Intensities of NRM typically range from 10 to 50 mA/m. Most materials respond favorably to both progressive alternating field and thermal demagnetization; thermal treatment ...
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On one pair of siltstone tablets, I notice some unusually large, deep and scary-looking footprints, each with five arched toe marks, like nails. I comment that they look just like bear tracks. "Yeah," MacDonald says reluctantly, "they sure do." Mammals evolved long after the Permian ...
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aof the tight oil plays produce oil directly from shales, tight oil resources are also produced from low-permeability siltstones, sandstones, and carbonates that occur in close association with a 紧的油戏剧产物油直接地从页岩,紧的石油资源由在接近的协会发生与a的低渗透性siltstones、砂岩和碳酸盐也导...
aUpper Jurassic ate divided into two strata;late Jurassic mainly containing shale with thin layers of coals and Cretaceous strata containing conglomerate,sandstone,siltstone,shale and coal bearing shale with volcanic rocks. 上部侏罗纪吃了划分成二地层; 主要晚侏罗纪包含的页岩与包含聚结、砂岩、粉砂岩、...
approximately 20 units with peaks up to 40 units have continued through any thin sands encountered in the Lower Stairway Sandstone and the Horn Valley Siltstone which was encountered at approximately 2,556m RKB almost immediately below the cored zone of 2546.2m to 2553m RKB cut in December 2011...