The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 497
... rock record that reflects even more remote events . The dating of these events and these objects is of major concern here . This article also covers the several methods of dating and their application within the following format : I ...
... rock record that reflects even more remote events . The dating of these events and these objects is of major concern here . This article also covers the several methods of dating and their application within the following format : I ...
Page 498
... rock feature A cuts across rock feature B , then A is younger than B. Commonly , B is a rock mass , whereas A is generally a quasi - planar feature , such as a dike ( tabular body of igneous rock ) or a fault or an un- conformity ...
... rock feature A cuts across rock feature B , then A is younger than B. Commonly , B is a rock mass , whereas A is generally a quasi - planar feature , such as a dike ( tabular body of igneous rock ) or a fault or an un- conformity ...
Page 505
... rocks are usually isolated by special techniques following rock crushing . Fine - grained rocks such as rhyolite , basalt , tuff , slate , and phyllite are generally handled whole with no attempt to separate discrete mineral fractions ...
... rocks are usually isolated by special techniques following rock crushing . Fine - grained rocks such as rhyolite , basalt , tuff , slate , and phyllite are generally handled whole with no attempt to separate discrete mineral fractions ...
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19th century Africa American animals areas became bee-eaters cells centimetres central centre century Church collagen conifers connective tissue conodonts conservation conservatism constitution continental continental drift copper Coraciiformes coral cosmic rays countries court covenant Cretaceous Crete cricket crime criminal Cro-Magnon crocodiles Crusade cultural deposits disease early Earth economic effect energy England Europe federal forest fossil France French function genera geosynclines groups hoopoes hornbills illus important industrial Iráklion island King known land later Le Corbusier legislation major ment metres minerals modern natural North Nyssaceae occur ocean Ordovician organized original Parliament particles party percent period plants political pollution population problems protection reefs region result River rock Roman Saladin sediments social South Soviet species structure theory tion town trade traditional trees tropical trouvères Union United usually western