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UTRECHT MICROPALEONTOLOGICAL BUllETINS

UTRECHT MICROPALEONTOLOGICAL BUllETINS

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1.2.1.2. Type-locality and type-section<br />

The coastal cliff at about 2 km. south-west of Djupvik, section 9 (fig. 2).<br />

1.2.1.3. Differential diagnosis<br />

The Djupvik Formation can be distinguished from the underlying "Tessini<br />

sandstone" by the much greater variety of its lithology. It can be differentiated<br />

from the overlying Kopingsklint Formation by its high content of<br />

terrigenous clastics.<br />

1.2.2. Kopingsklint Formation (after the raised sea-cliff between Borgholm<br />

and Kopingsvik, fig. 2).<br />

1.2.2.1. Diagnosis<br />

A unit characterized by red-brown, violet and green micritic to sparritic<br />

limestones, containing remains of fossils, glauconite grains and pyrite crystals.<br />

Intercalations of marl and calcareous glauconite sand occur. Glauconite'<br />

grains are the most frequently occurring allochems.<br />

This formation is subdivided into five informal members, which are named<br />

by combination of the following abbreviations:<br />

l"¥:",;.;"*1 3<br />

c==J 4<br />

The type-section of the<br />

Kopingsklint Formation<br />

and its subdivision<br />

at Kopingsklint (section<br />

1, fig. 2).<br />

Legend: 1 = slightly<br />

glauconitic black shale.<br />

2 = glauconite sand<br />

with a black shale matrix.<br />

3 = highly calcareous<br />

glauconite sand<br />

with a cement of sparry<br />

calcite, often arranged<br />

in rosette-like structures.<br />

4 = fossiliferous<br />

limestone. 5 = glauconitic<br />

limestone. 6 = disconformities.

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