1000 resultados para Rijksarchief in Drenthe.


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

At head of title: Rijksarchief in Drente.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

In the Weser valley NW Hameln early diagenetic carbonate cementation is present in the upper Elsterian to Drenthe sediments. Examination of the calcite cement indicated a multiphase formation. Cementation occured mainly in vadose environment above ground-water table. This process generated predominantly brown calcite cement with a crystal size of <5 to 20pm. Next to meniscus-cement this fine-crystalline calcite forms further cements typical for vadose zone. In one layer of the „Mittelterrasse'-sediments, deposited in the late Elsterian age, a calcite cement is present, which may already have formed in the Holstein Interglacial. Cementation started in the upper-most layers of the „Mittelterrasse'-sediments in a late phase of „Mittelterrasse“-accumulation in this area. The so formed consolidated layers were deformed by the Drentheglacier. After ice melting cementation continued in at least 3 phases, creating nonluminiscent phreatic, orange to red luminiscent vadose and nonluminiscent vadose calcite cement.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

An outline of the Pleistocene history of the southern Lüneburg Heide is given based on the interpretation of exposed sections and indicator-stone analysis. Locally, Elsterian sediments crop out at the surface, mainly near the Holsteinian kieselgur (diatomite), thus indicating the existence of a pre-Saalian relief. Most of the Pleistocene deposits were formed during the three Saali- an ice advances. The ground moraine (basal till) of the first advance (the main Drenthe moraine) and its outwash sands are only locally exposed and only at the margin of the Aller valley do they form a relatively extensive plain. To the north, they are overlain by outwash sands of the late Drenthe advance. Also the Uelzen end moraine consists mainly of these outwash sands. The Uelzen moraine was overridden by the same ice advance. The Warthe ice sheet left only minor traces ridge; its advance came to a final stop at the already dumped morainic material.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Ziel dieser Arbeit ist es, die vertikale und laterale lithologische Differenziertheit der Grundmoränen und anderen moränalen Sedimente der Elstereiszeit und des Haupt- Drenthestadials der Saaleeiszeit zu charakterisieren. Die Untersuchungen sollen in erster Linie die Gefügevariabilität der lithostratigraphisch eingestuften Einheiten in den einzelnen Aufschlüssen erfassen und nachfolgend einen regionalen Vergleich ermöglichen. Aus dem Gefüge der Moränen, insbesondere aus den Texturmerkmalen, soll versucht werden, die maßgebenden moränenbildenden Prozesse bzw. den genetischen Till-Typ abzuleiten. Völlig sichere Aussagen können jedoch nur in wenigen Fällen erwartet werden, da die Kriterien für den Nachweis der genetischen Till-Typen oft nicht eindeutig sind und manche Gefügemerkmale verschieden genetisch interpretiert werden können (vgl. HALDORSEN & SHAW 1982) . Die genetischen Till-Typen sind eng an die Dynamik des den Till bildenden Gletschers geknüpft. Regional gültige Aussagen zur Inlandeisdynamik erfordern jedoch eine größere Zusammenschau von Untersuchungsergebnissen, als sie hier vorgenommen werden kann.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

A total of 117 samples of quarternary sediments, mostly sands, from a region NW of Hannover (Lower Saxony) has been investigated with regard to their content of heavy minerals. The absolute percentage of transparent heavy minerals approximates 0.2 Vol.%. If several samples of glaciofluvial sands (Drenthe-stage) or dune sands (Late Weichsel-stage to Holocene) are taken from one outcrop they show great similarities in their heavy minerals contents. Glaciofluvial sands of the Elster-stage evidently have less Garnet, Hornblende and minerals of volcanic origin (Augite, partly also Orthopyroxenes, Oxyhornblende and Olivine) than those of the Drenthe-stage, Weichsel-stage, and the Holocene. All these groups hold nearly the same average assemblages of heavy mineral, thus indicating that within the Drenthe-stage or later material from north and from south has been mixed and/or reworked. In the area investigated the proportions of heavy minerals do not help to identify either the stratigraphic position or the way of deposition of different sandy sediments younger than the Elster-stage. The distributional pattern of several heavy minerals point out that Kyanite, Hornblende and Epidote have been transported predominantly from the north, whereas Garnet and Staurolite have sources both in the north and the south. Tourmaline, Apatite and the minerals of volcanic origin mainly must be derived from the south. All results obtained in the region examined should not be transferred to other zones of the lowlands of Northern Germany automatically.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Die vorliegende Untersuchung befaßt sich mit eiszeitlichen Ablagerungen im Raum der TK Rinteln. Ein "Ton"-Vorkommen wurde als drenthezeitlicher Dropstein- Laminit angesprochen. Dieser liegt stratigraphisch unter den Krankenhagen-Möllenbecker-Kieskörpern und wurde als geringfügig jünger als der Hauptvorstoß der Drenthe-Vereisung in diesem Raum eingestuft. Für die oben erwähnten Kieskörper wurde eine Entstehung als Endmoränen ausgeschlossen. Sie wurden als Kame-Terrassen gedeutet.

Relevância:

20.00% 20.00%

Publicador: