ALGE MBR
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Generell informasjon
Generell informasjon Attributt Verdi Litostrat. enhet Den litostratigrafiske enhetens offisielle navn.ALGE MBRNPDID for litostrat. enhet Sokkeldirektoratets entydige nøkkel for litostratigrafiske enheter.202Nivå Angir den litostratigrafiske enhetens nivå. Lovlige verdier: GROUP, FORMATION, MEMBER.MEMBERLitostrat. enhet, forelder Den litostratigrafiske enhetens offisielle navn, refererer til forelder. Se også nivå. Vil være tom hvis Nivå = GROUP. -
Beskrivelse
Alge Member
NameNorwegian for “alga”.Well type sectionReference well sectionThickness35 m in the type well and 50 m in the reference well.LithologyThe Alge Member forms the lower high gamma intensity part of the Hekkingen Formation and consists of black paper shales rich in organic material.Lower boundary definitionThe base is defined by the transition from carbonate cemented and pyritic mudstones to poorly consolidated shales, producing a sudden increase in interval transit time and an abrupt decrease in bulk density values.AgeLate Oxfordian – Kimmeridgian, based on ammonites and palynology.Depositional environmentThe member was deposited in restricted shelf environments.Compiled from-
Dalland, A., Worsley, D. and Ofstad, K. (eds.) 1988: A lithostratigraphic scheme for the Mesozoic and Cenozoic succession offshore mid- and northern Norway. NPD-Bulletin No. 4, 65 pp.
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Dallmann, W. K. (ed.) 1999: Lithostratigraphic lexicon of Svalbard. Review and recommendations for nomenclature use. Upper Palaeozoic to Quaternary Bedrock. Norwegian Polar Institute, 318 pp.
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Brønnbaner som penetrerer
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Brønnbaner med kjerner