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Petrology and depositional history of the Campanian strata at Maltesholm, Scania, southern Sweden

Sandström, Olof (1994) In Dissertations in Geology at Lund University
Department of Geology
Abstract
Campanian sediments of the Maltesholm quarry consist of mostly coarse grained, poorly consolidated, ruditic grainstones, almost free of micrite and lime mud, with interbedded clay horizons. The main constituents of the grainstones are coralline algae and quartz. The lack of micrite and the abundance of coralline algae indicates a nearshore, shallow, high energy environment. Two different facies may be recognised, fair weather facies with rudists in abundance, and storm facies with pebble and shell fragment conglomerates, scour and fill structures and hummocky cross bedded sequences. The conglomerate pebbles are well rounded and consist of mostly Precambrian rocks, limonite nodules and quartz. The clay horizons are secondary injected... (More)
Campanian sediments of the Maltesholm quarry consist of mostly coarse grained, poorly consolidated, ruditic grainstones, almost free of micrite and lime mud, with interbedded clay horizons. The main constituents of the grainstones are coralline algae and quartz. The lack of micrite and the abundance of coralline algae indicates a nearshore, shallow, high energy environment. Two different facies may be recognised, fair weather facies with rudists in abundance, and storm facies with pebble and shell fragment conglomerates, scour and fill structures and hummocky cross bedded sequences. The conglomerate pebbles are well rounded and consist of mostly Precambrian rocks, limonite nodules and quartz. The clay horizons are secondary injected fillings of cracks and fissures in the limestone. Paleocurrent data of belemnite rostra indicates a storm driven current direction perpendicular to the shore line. The belemnites are of the species Belemnellocamax mammillatus and show an age of Late early Campanian. In comparison with other localities in the Kristianstad basin, the same type of environments may be found in the Ullstorp and Ignaberga quarries. (Less)
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author
Sandström, Olof
supervisor
organization
year
type
H1 - Master's Degree (One Year)
subject
keywords
Kristianstad basin, Maltesholm, Campanian, grainstone, facies, storm sediments, hummocky cross bedding, conglomerates, shallow marine environment, rudists, belemnites
publication/series
Dissertations in Geology at Lund University
report number
62
language
English
id
2370057
date added to LUP
2012-10-22 11:14:53
date last changed
2012-10-22 11:14:53
@misc{2370057,
  abstract     = {Campanian sediments of the Maltesholm quarry consist of mostly coarse grained, poorly consolidated, ruditic grainstones, almost free of micrite and lime mud, with interbedded clay horizons. The main constituents of the grainstones are coralline algae and quartz. The lack of micrite and the abundance of coralline algae indicates a nearshore, shallow, high energy environment. Two different facies may be recognised, fair weather facies with rudists in abundance, and storm facies with pebble and shell fragment conglomerates, scour and fill structures and hummocky cross bedded sequences. The conglomerate pebbles are well rounded and consist of mostly Precambrian rocks, limonite nodules and quartz. The clay horizons are secondary injected fillings of cracks and fissures in the limestone. Paleocurrent data of belemnite rostra indicates a storm driven current direction perpendicular to the shore line. The belemnites are of the species Belemnellocamax mammillatus and show an age of Late early Campanian. In comparison with other localities in the Kristianstad basin, the same type of environments may be found in the Ullstorp and Ignaberga quarries.},
  author       = {Sandström, Olof},
  keyword      = {Kristianstad basin,Maltesholm,Campanian,grainstone,facies,storm sediments,hummocky cross bedding,conglomerates,shallow marine environment,rudists,belemnites},
  language     = {eng},
  note         = {Student Paper},
  series       = {Dissertations in Geology at Lund University},
  title        = {Petrology and depositional history of the Campanian strata at Maltesholm, Scania, southern Sweden},
  year         = {1994},
}