Hogland Series
id:
hogland-series-225-2010952
title:
Hogland Series
text:
The Hogland Series are a series of Subjotnian sedimentary rocks exposed on the island of Gogland, the Sommer Islands and the nearby sea floor in the Gulf of Finland. The series encompass quartz-rich conglomerates and breccias, as well as some volcanic rocks of mafic composition in the form of lava flows and some more silica-rich igneous rocks including quartz-porphyry. The porphyries, which lie at the top the pile, share their origin with the rapakivi granites located nearby. An exhumed Subjotni
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Hogland_Series
date created:
2015-08-19T23:19:45Z
date modified:
2024-09-14T18:04:11Z
main entity:
{"identifier":"Q20982658","url":"https://www.wikidata.org/entity/Q20982658"}
image:
fields total:
13
integrity:
14