KLAPPMYSS FM
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General information
General information Attribute Value Lithostrat. unit The lithostratigraphic unit's official name.KLAPPMYSS FMNPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.80Level Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.FORMATIONLithostrat. unit, parent The parent lithostratigraphic unit's official name. See also level. Will be empty if Level = GROUP. -
Level below
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Description
Klappmyss Formation
NameThe formation's name is derived from the seal species Cystophora cristata. The formation corresponds to T1-2 and the lower parts of T1-3 (Andenes and lower Gimsøy formations) of earlier informal terminology.Well type sectionWell 7120/12-2 (Norsk Hydro), coordinates 71°7'30.03"N, 20°48'19.00"E, from 3552 m to 3095 m (Fig 4.42) .Well reference sectionWell 7120/9-2 (Norsk Hydro), coordinates 71°29'40.81"N, 20°42'05.38"E, from 4806 to 4245 m (Fig 4.43)Thickness457 m in the type well and 561 m in the reference well.LithologyMedium to dark grey shales pass upwards into interbedded shales, siltstones and sandstones in the type well. The reference well shows a similar trend, but with more shale throughout.Basal StratotypeThe base is defined by clear log breaks, with increasing gamma ray, interval transit time and neutron porosity readings. This represents an important sequence boundary throughout the area, reflecting an early Smithian transgressive pulse.Lateral extent and variationThe formation thickens and fines northwards from the southern margins of the Hammerfest Basin.AgePalynofloras suggest a Smithian to Spathian age.Depositional environmentMarginal to open marine environments are indicated, with renewed northwards coastal progradation following the early Smithian transgression.CorrelationThe unit is equivalent to the Tvillingodden Formation of western Spitsbergen.Source-
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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Wellbores penetrating
Wellbores penetrating 15.11.19852315237326.12.19852315237321.07.19862315237307.10.20132244228103.08.20142285230120.10.19844245480611.09.19813095355216.04.198468599223.08.19862605278608.01.20062044221225.11.20062042221723.12.20062126222804.01.20131996202620.10.19872334267112.10.20112276260607.03.20071561161501.12.20081683175026.02.1994748100808.11.1991734100207.04.20191469189517.10.20141895189802.09.20151830183229.09.20152013206410.10.20162013206417.07.20171874188628.08.20172203221801.12.20201435145902.08.20161969207510.03.20082464267427.02.20142858291814.01.20092451254904.03.20162257273519.06.19882222266325.09.20112155255507.08.20132141221019.07.20082325293011.04.19882303291320.12.19893574398402.02.20012741288107.05.19902097263815.12.19932353280428.05.20212391244719.08.19892272251221.07.20142430275815.06.201916183060 -
Wellbores with cores
Wellbores with cores 25.11.20061102.09.2015229.09.20154919.07.2008402.02.200128