unconformity
41Deep time — For other uses, see Deep time (disambiguation). Deep time is the concept that the Geologic time scale is vast because the Earth is very old. The modern philosophical concept was developed in the 18th century by Scottish geologist James Hutton… …
42Old Red Sandstone — Stratigraphic range: Late Silurian to earliest Carboniferous Cross section showing quartz and chert pebbles in a sample from central England (scale bar is 10 mm). Type Geological formation …
43Doushantuo Formation — Stratigraphic range: 635–551 Ma[1] …
44Geology of the Death Valley area — The exposed geology of the Death Valley area presents a diverse and complex story that includes at least 23 formations of sedimentary units, two major gaps in the geologic record called unconformities, and at least one distinct set of related… …
45Siccar Point — is a rocky promontory in the county of Berwickshire on the east coast of Scotland. It is famous in the history of geology for Hutton s Unconformity found in 1788, which James Hutton regarded as conclusive proof of his uniformitarian theory of… …
46Decorah Shale — Paleozoic Stratigraphy of the Upper Midwest, USA Dates are approximate, and deposition occurred at slightly different times in different areas This box: view · talk · …
47Uranlagerstätte — Uranlagerstätten sind natürliche Anreicherungen von Uran, aus denen sich das Element wirtschaftlich gewinnen lässt. Inhaltsverzeichnis 1 Grundlagen 1.1 Geochemie des Urans 1.2 Mineralogie 2 …
48Фишер, Роджер — Роджер Фишер Roger Fisher Дата рождения 14 февраля 1950(1950 02 14) (62 года) Место рождения Сиэтл, Вашингтон Годы …
49Death Valley National Park — IUCN Category II (National Park) …
50Irish Sea — Freight and passenger …
