- The
Alum Shale Formation (also
known as alum
schist and alum slate) is a
formation of
black shale of
Middle Cambrian to
Tremadocian (Lower Ordovician)...
- Revolution. One of the
oldest historic sites for the
production of
alum from
shale and
human urine are the Peak alum
works in Ravenscar,
North Yorkshire...
- An alum (/ˈæləm/) is a type of
chemical compound,
usually a
hydrated double sulfate salt of
aluminium with the
general formula XAl(SO 4) 2·12H 2O, where...
-
production in Sillamäe, Estonia, and
between 1950 and 1989
Sweden used
alum shale for the same purposes. Oil
shale gas has
served as a
substitute for natural...
- from the
organic rich Cambro-Ordovician
Alum Shale over an area
covering about 150 km². The
prospective Alum Shale was
encountered at
depths of 75–85 metres...
- free-living pentastomids. The
Cambrian strata consist of
alum shales with
limestone nodules (the
Alum Shale Formation),
which are
interpreted as the products...
- The Alum Cr**** Lake
reservoir was
built in 1974,
covers 5 sq mi (13 km2) and has a
maximum capacity of 134,815 acre feet (166,292,000 m3). Alum Cr**** Dam...
-
Originally Ytong autoclaved aerated concrete in
Sweden was
produced with
alum shale,
whose combustible carbon content was
beneficial in the
production process...
- used for
uranium production in Sillamäe, Estonia, and
during 1950–1989
alum shale was used in
Sweden for the same purpose. Oil
shale gas can also be used...
- W****s
Formation 500 Mya
Western Utah, US Kinnekulle
Orsten and
Alum Shale 500 Mya
Sweden Ordovician Fezouata
Formation about 485 Mya Draa Valley...