LYR FM
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Generell informasjon
Generell informasjon Attributt Verdi Litostrat. enhet Den litostratigrafiske enhetens offisielle navn.LYR FMNPDID for litostrat. enhet Sokkeldirektoratets entydige nøkkel for litostratigrafiske enheter.98Nivå Angir den litostratigrafiske enhetens nivå. Lovlige verdier: GROUP, FORMATION, MEMBER.FORMATIONLitostrat. enhet, forelder Den litostratigrafiske enhetens offisielle navn, refererer til forelder. Se også nivå. Vil være tom hvis Nivå = GROUP. -
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Beskrivelse
Lyr Formation
NameFrom the fish species Pollachius pollachius (pollack).Well type sectionWell 6506/12-1 (Statoil), coordinates 65°10'07.58"N, 06°43'44.07"E, from 3836 m to 3812.5 m (Fig 4.27) . No cores.Well reference sectionWell 6407/1-2 (Statoil), coordinates 64°47'50.61"N, 07°02'23.76"E, from 3526 m to 3510 m (Fig 4.28) . No cores.Thickness23.5 m in the type well and 16 m in the reference well.LithologyThe formation consists of light/medium grey to light greyish-green marls with interbedded carbonates.Basal StratotypeIn the type well the base is defined by a decrease of interval transit times shown by the sonic log. The gamma ray and the resistivity responses also decrease.
The base has been sampled in shallow cores from the eastern part of the Trøndelag Platform (Bugge et al. 1984), but logs and detailed descriptions are not yet available.Lateral extent and variationThe formation is encountered in all wells on Halten Terrace, but is absent on the Nordland Ridge and on structural highs on the Nordland Ridge and the Trøndelag Platform. The carbonate content is expected to decrease to the west in the Møre and Vøring Basins. The formation consists of very thin limestones with intraformational conglomerates on the eastern part of the Trøndelag Platform (Bugge et al. 1984).AgeValanginian to Early Aptian.Depositional environmentThe formation was deposited under open marine conditions.CorrelationThe Lyr Formation is comparable to the Valhall Formation11) (Deegan and Scull, 1977) in the central North Sea. It is also equivalent to the Leira Member on Andøya (Dalland, 1979).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.
Footnotes-
1) Åsgard Formation according to Isaksen, D. and Tonstad, K. (eds.) 1989: A revised Cretaceous and Tertiary lithostratigraphic nomenclature for the Norwegian North Sea. NPD-Bulletin No. 5, 59 pp.
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Brønnbaner som penetrerer
Brønnbaner som penetrerer 11.12.20212313231812.07.20221635164805.07.19941100113717.11.20091953196318.01.202279781028.12.20181809184516.10.20231889190009.04.19954352437107.01.19963450436927.03.19964354437503.03.20064348436915.04.19974620462905.04.19974372438815.02.19994372438829.09.19974654479223.02.19985224523807.11.19984422443206.07.20004735474723.05.20004423443326.12.19994545455805.05.20154270429915.01.20194397441929.12.19873884390801.06.19883703373215.11.20023548357719.09.20063875389530.04.20024060407231.01.20074032405109.07.20133721373230.10.20153957397105.01.20194137416916.11.20184137416908.04.20074240424802.06.20054229425401.07.20074315432529.09.20134182420018.02.19913370341928.02.19913577360022.07.20144019404111.06.20143695372626.04.20143505351417.09.20153443349517.08.20153699372612.11.20153729374124.10.20203823385915.05.19833510352616.01.19843500352123.08.19963547357106.08.19822827284331.07.19832395241031.08.20092800281902.09.20092719273313.05.20102863290908.05.20112530253805.09.20191944195815.11.19853682371013.04.20113769379504.03.19883850387326.10.19841817183420.09.20073327332914.09.20084005412005.11.20084005411816.10.20163841385020.09.20163438344307.06.19924062409427.05.19971631163913.06.20093194319907.09.19841583159102.02.19851610162022.09.19921598160608.11.20191613162214.02.20221977199023.06.19902770282127.06.19921770180619.01.20162368237918.09.20152513251807.12.20181736174315.07.19991614162502.06.20101598163018.10.19881666170207.12.20004328435315.09.20094548457528.04.20104120413827.08.20134000402513.07.20184133414927.04.20184339438731.03.19883813384426.10.19914139416202.10.19924142416706.06.19964399442810.11.19964094413927.07.20014549457616.07.20064586459903.09.20124513454917.04.20184201422328.10.20194116414106.02.19853813383613.08.19853835385530.08.19883725374310.09.19934128416926.06.19954177422911.12.19954833490107.09.19964554457701.02.19974554457701.09.20094393440806.08.20094393440805.05.19943791384319.02.20083552360026.10.19903018308830.04.20043040316108.05.20083432356615.12.20092525253416.08.20132719284228.02.20172736289101.06.20193377342018.09.20213379341823.09.19993207322215.04.20013364337103.06.20013461347414.02.20023327333916.07.19913154317401.12.19843645368014.08.19973322332731.01.20042575264931.10.19822770278110.02.20142613261515.08.19852347235828.10.19972420243408.07.20012870288503.07.20072359237318.04.20082531253501.07.20152580260426.10.19802012203224.05.19871562158026.12.20123837385513.10.20203318338726.10.20135334563429.01.19922253234711.03.19932394240717.08.19952394240706.03.19942187232806.08.19952550259814.05.20001717179402.12.20001717179429.08.20011712178923.05.20011803190212.04.20022088222226.04.20022108232318.02.20031821204707.08.20032304236515.08.20062956310721.12.20082599267425.01.20092679276801.04.20102283237512.09.20131735183013.06.20143484353131.01.20173205331117.08.20183357341821.06.20131619165505.08.20191444149807.07.19832022206911.12.19933418353407.10.19963420353603.02.201320302264 -
Brønnbaner med kjerner
Brønnbaner med kjerner 11.06.20142322.09.19921