In the slaty light of one such foggy dawn, a long-legged Namib beetle stands on a small ridge of sand. |
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These planes, referred to as slaty cleavage, are caused by the rearrangement of minerals such as mica, chlorite, and clay within the rock. |
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These have a good slaty cleavage in pelitic rocks and a well-developed crenulation cleavage in places. |
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Precrystalline surfaces have slaty cleavage, or flow cleavage, whereas postcrystalline surfaces have false, fracture, or strain-slip cleavage. |
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On the southeastern limb, the basal Mitchell Settlement Formation consists of maroon or green, slaty siltstones and fine-grained sandstones. |
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We saw hippo and elephant but for me highlights were a rare slaty egret, an in-your-face look at a marabou stork standing over a single egg on its head-high nest. |
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It varies from yellowish or brownish to a slaty colour and when young may be vertically barred with yellow. |
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The wine-growing region has the ideal climate and the best slaty soil for this grape variety. |
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Moreover, many birders are going to the Okavango to watch some rare species, such as the slaty egret and the Pel's fishing owl. |
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Today we are in search of the slaty egret, coppery tailed coucal, striped crake and some of the other unusual species found in this area. |
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His writings were many and ranged over such subjects as diverse as slaty cleavage, metamorphic rocks, plutons, and Pleistocene glaciation in the Isle of Skye. |
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Plumage color of homozygous birds varies from slaty blue to beige depending on the relative abundance of eumelanin and pheomelanin in the feathers. |
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The steep and steepest slopes of the Mosel-Saar-Ruwer wine growing region make it distinctive but the sunny and warm climate and the slaty soils give the wine its special character. |
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Where the earth is not turned over, water in slaty earth such as that of the Priorat region tends to escape through cracks or a layer of sludge is formed that allows for run-off without infiltration. |
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Rocks formed or deposited during this time are assigned to the Cambrian System, which was named in 1835 by English geologist Adam Sedgwick for successions of slaty rocks in southern Wales and southwestern England. |
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The lithologies exposed in the mine workings comprise slaty phyllites, arkoses, greywackes and jaspilite ironstone bands. |
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The resulting slaty cleavage is parallel to the axial plane of regional folds. |
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Swish-swish, and a thick, blue-black helmet-headed creature — named, in the fanciful way of the dragonfly world, a slaty skimmer — danced in the fabric. |
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Apart from spawning males, which are light yellow along the sides and lower fins, this fish is otherwise silvery in colour with a broad, slaty mid-dorsal stripe. |
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Sedgwick investigated the phenomena of metamorphism and concretion, and was the first to distinguish clearly between stratification, jointing, and slaty cleavage. |
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The behavior and ecology of Slaty Antshrikes on Barro Colorado Island, Panama Canal Zone. |
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