How To Use Lower carboniferous In A Sentence
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Lower Carboniferous conodont faunas from North-East Devonshire.
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Older Palaeozoic rocks are represented by greenish grey slates from the sides of the Beardmore glacier and by radiolarian cherts; but the most widespread of the sedimentary rocks occurring in vast beds in the mountain faces is that named by Ferrar the Beacon sandstones, which in the far south Shackleton found to be banded with seams of shale and coal amongst which a fossil occurred which has been identified as coniferous wood and suggests that the place of the formation is Lower Carboniferous or perhaps Upper Devonian.
Perspective of Antarctica in 1911
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The research shows that the Lower Carboniferous source rock is the dominating contributor to the natural gas, and the Permian source rock contribution is subordinate.
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The zimenqiao Formation silicalite of Lower Carboniferous is the country rock of Changkeng Au - Ag deposit.
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At the extreme south end, between Kilchattan and Garroch Head, these conglomerates and sandstones are overlaid by a thick cornstone or dolomitic limestone marking the upper limit of the formation, which is surmounted by the cement-stones and contemporaneous lavas of Lower Carboniferous age.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"
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For example, the Lower Carboniferous green volcanic ashes and agglomerates from Oxroad Bay in East Lothian, Scotland contain abundant anatomically preserved plants that were overlooked by those studying the geology.
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The Lower Carboniferous and lowermost Upper Carboniferous stratigraphic sequence is composed of the Culm siliceous shales, the Culm siliceous limestones, the Culm limestones and the upper black shales.
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New palaeomagnetic data from Lower Carboniferous granitoids of the orogenic root of the eastern Variscan belt show a polyphase palaeomagnetic record.
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The results demonstrated that the Lower Carboniferous of Chaobei area is a set of littoral facies deposit, mainly limestone, a few sandstone and mudstone, ten microfacies can be identified.