词条„Pennsylvanian“在英语 » 德语中的译文

Penn·syl·va·nian [ˌpensɪlˈveɪniən, 美 -səlˈveɪnjən] 形 不变的

Pennsylvanian

pennsylvanisch

单语范例（未经PONS编辑处理）

英语

Around the eastern, southern and western edges of this pluton is a complex association of Pennsylvanian-era argillite, greywacke, chert and diabase.

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Economically important coal beds were deposited primarily during Pennsylvanian time in a southeastward-thickening foreland basin.

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There are also clay and shale within the Pennsylvanian bedrock.

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In Pennsylvanian-age lyginopteridalean synangia, the sporangia were usually attached to a pad of tissue that was probably homologous to a pinnule on the vegetative fronds.

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The highest ridges and peaks are capped by Pennsylvanian sandstone and shale.

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The 25 to 30 meters of shale were formed approximately, during the Pennsylvanian period.

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The area is underlain by Pennsylvanian sandstone, shale, and siltstone, where some folding and faulting has occurred.

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A warm shallow sea again flooded the region near the end of the Pennsylvanian.

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The fossils are found in the exposed Pennsylvanian coal seams in the cliffs that overlook the shore.

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The fields contain either bituminous coal or semi-anthracite, and all occur within Pennsylvanian strata.

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