ZECHSTEIN GP

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• General information

  General information

  Attribute	Value
  Lithostrat. unit The lithostratigraphic unit's official name.	ZECHSTEIN GP
  NPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.	194
  Level Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.	GROUP

• Level below

  Level below

  Lithostrat. unit
  KUPFERSCHIEFER FM

• Description

  Zechstein Group
  
  Name

  An old German mining term referring to the sediments of several saline rock cycles above the Kupferschiefer (Copper Shale).

  Type area

  Well 7/3-1 (Amoco/Noco) and well 17/4-1 (Petronord) (Fig 1.9-11) . illustrate the lithology of the Zechstein Group in the Norwegian sector.

  Thickness

  The Zechstein Group is very variable in thickness, partly as a result of post-depositional salt movements (halokinesis). The succession possibly exceeds 1500 m in thickness in central parts of the Norwegian-Danish Basin.

  Lithology

  Evaporates and carbonates with local clastic rocks. Halites dominate the basin-centre sequences, while limestones, dolomites and anhydrates prevail along the basin margins. Well 17/4-1 shows a thick halite-rich section which is not significantly distorted by halokinesis. The top and bottom boundaries of the Zechstein Group is conformable in this well and the cyclic nature of Zechstein deposition recognised in Germany and the Southern North Sea Basin can also be tentatively recognised.

  Boundaries

  The Zechstein Group rests on arenaceous sediments of the Rotliegend Group or crystalline basement.
  The Zechstein Group is overlain mostly by Triassic sedimentary rocks. Adjacent to the North Sea graben system where Late Jurassic uplift resulted in erosion, Permian rocks are covered by strata ranging in age up to Late Cretaceous or Paleocene.

  Age

  Late Permian.

  Distribution

  Zechstein sedimentary rocks are widespread over the Norwegian-Danish Basin, but are absent east and north of the Utsira High and over the Mid North Sea and Ringkøbing-Fyn highs.

  Depositional environment

  Marine.

  Subdivision

  In the Norwegian sector no subdivision of the group is made. The only possible exception is the basal unit, the Kupferschiefer (Copper Shale), which is thin but appears to be developed uniformly throughout the North Sea.

  Compiled from

  • Deegan, C. E. and Scull, B. J. (compilers) 1977: A standard lithostratigraphic nomenclature for the Central and Northern North Sea. UK Institute of Geological Sciences, Report 77/25. The Norwegian Petroleum Directorate, NPD-Bulletin No. 1, 36 pp.

• Wellbores penetrating

  Wellbores penetrating

  Wellbore name	Wellbore completion date	Top depth [m]	Bottom depth [m]
  1/3-1	11.11.1968	4671	4877
  1/3-3	24.03.1983	4820	4876
  1/3-4	08.05.1983	3160	3198
  1/3-5	11.02.1985	4734	4769
  1/5-2	15.04.1974	4228	4287
  1/5-4 S	22.05.2002	3077	3090
  1/6-1	26.11.1972	4800	4822
  1/6-5	02.09.1990	1742	1854
  1/9-4	12.01.1978	3690	3710
  1/9-4 R	26.04.1991	3690	3710
  2/1-2	26.02.1978	3540	3556
  2/1-3	29.03.1980	4219	4297
  2/1-4	03.08.1982	4485	4525
  2/1-7	06.03.1985	4332	5084
  2/1-9	06.07.1991	4289	4298
  2/2-1	03.07.1982	3947	4003
  2/2-2	27.08.1982	3105	3127
  2/2-5	19.02.1992	4079	4082
  2/3-1	03.04.1969	2917	2934
  2/3-3	20.11.1971	2930	2973
  2/3-4	24.07.1984	3377	3386
  2/4-8	29.03.1972	3696	4075
  2/4-11	09.04.1974	4211	4281
  2/4-17	29.02.1992	4486	4520
  2/4-20	14.03.2008	5496	5631
  2/4-22 S	22.02.2015	4743	4830
  2/5-3	15.06.1972	3716	3731
  2/6-1	30.05.1969	3302	3336
  2/6-2	25.05.1980	4723	4760
  2/6-3	25.02.1983	3729	3918
  2/6-4 S	02.06.1990	3615	3617
  2/6-6 S	18.01.2019	3599	3680
  2/7-3	11.10.1972	4192	4359
  2/7-12	30.01.1979	1686	1832
  2/7-19	02.02.1981	4840	4876
  2/7-19 R	14.03.1990	4837	4873
  2/7-28	07.08.1992	3839	3893
  2/7-29	06.01.1994	4800	4853
  2/7-31	09.06.1999	4668	4750
  2/8-7	24.08.1975	2825	2868
  2/8-13	22.06.1989	1775	1940
  2/8-17 A	21.02.1998	3119	3145
  2/9-5 S	18.09.2014	3547	3556
  2/10-1 S	23.04.1976	4271	4297
  2/10-2	25.04.1993	4062	4128
  2/11-12 A	07.03.2019	3390	3427
  2/12-1	12.03.1987	4674	4684
  3/4-1	26.02.1994	3077	3107
  3/5-1	28.06.1978	2902	3103
  3/7-2	20.06.1981	2998	4166
  3/7-3	31.08.1981	3506	3540
  3/7-4	23.01.1990	3688	3723
  3/7-5	07.02.1992	3609	3666
  3/7-8 S	03.03.2013	4148	4188
  3/7-11 S	27.05.2019	3741	3790
  3/8-1	29.12.2010	3563	4021
  6/3-2	10.03.1986	3293	4045
  7/3-1	10.06.1969	2696	4406
  7/4-1	21.08.1993	3083	3133
  7/4-2	13.03.2008	3457	3459
  7/7-2	25.04.1992	3388	3430
  7/7-3	04.07.1993	3567	3584
  7/8-2	29.08.1973	2997	3006
  7/8-3	12.12.1983	4237	4320
  7/9-1	29.05.1971	2811	2931
  7/11-1	15.06.1968	3740	3974
  7/11-7	25.12.1983	4856	4927
  7/11-7 R	08.10.1984	4856	4927
  7/12-3 A	06.09.1977	4095	4191
  7/12-5	07.06.1981	4393	4440
  8/1-1	07.02.1972	2873	2971
  8/3-1	10.10.1966	2205	2965
  8/4-1	25.07.1977	2582	2632
  8/9-1	10.02.1976	2247	2376
  8/10-1	01.07.1969	3081	3089
  8/10-2	17.03.1980	2880	2997
  8/10-3	06.10.2010	3394	5398
  8/10-4 S	27.10.2011	3058	3071
  8/10-5 A	24.05.2014	2618	2662
  8/10-5 S	04.03.2014	2810	2925
  8/10-6 S	16.07.2014	2196	2256
  8/10-7 S	04.01.2019	3146	3155
  9/2-8 S	02.02.1998	6023	7378
  9/4-1	19.05.1968	2939	2963
  9/4-5	01.08.2006	5224	5279
  9/8-1	29.06.1968	2109	2176
  10/4-1	12.07.2015	2364	2415
  10/5-1	26.06.1976	1597	1818
  10/7-1	30.07.1992	1836	1890
  10/8-1	17.01.1971	2825	2861
  11/9-1	28.02.1976	1930	1972
  15/2-1	24.02.1982	4555	4600
  15/5-3	07.12.1980	3800	4850
  15/9-9	14.07.1981	2969	3014
  15/9-13	27.05.1982	3256	3280
  15/9-16	24.08.1982	3011	3068
  15/12-2	27.02.1976	2888	2924
  15/12-3	22.12.1980	3238	4392
  15/12-17 S	04.02.2007	3345	3371
  15/12-18 S	07.11.2007	3468	3520
  15/12-26	13.05.2021	2784	2787
  16/1-2	07.08.1976	2713	2808
  16/1-3	27.09.1982	3082	3230
  16/1-16	07.12.2012	2642	2671
  16/1-29 S	03.06.2018	1885	1912
  16/1-34 A	15.09.2021	2061	2109
  16/2-6	20.09.2010	2075	2131
  16/2-7	01.09.2011	2134	2244
  16/2-16	12.12.2012	2065	2165
  16/3-5	07.03.2013	1932	1967
  16/3-7	08.11.2013	1963	2000
  16/3-8 A	01.04.2014	1986	2069
  16/3-8 S	16.03.2014	1993	2060
  16/4-1	18.11.1984	2430	2621
  16/4-12	08.10.2021	2144	2171
  16/5-3	20.03.2013	1990	1993
  16/7-1	24.09.1967	2085	2781
  16/7-2	30.03.1982	3010	3117
  16/7-3	27.07.1982	2795	2859
  16/8-2	13.08.1980	2254	3585
  16/8-3 S	01.05.2013	2734	3015
  16/9-1	12.07.1968	3199	3655
  16/10-1	14.07.1986	3116	3151
  16/10-4	10.08.1998	2550	2580
  16/11-1 S	31.10.1967	2255	3050
  16/11-2	23.07.1973	2269	2378
  17/4-1	26.08.1968	2665	3834
  17/8-1	23.10.2021	2658	2838
  17/11-1	30.06.1968	2517	3269
  17/12-1 R	21.06.1972	4133	4298
  17/12-2	09.10.1973	2243	2293
  25/10-2 R	08.07.1972	2897	3014
  25/10-4	18.01.1981	2314	2349
  25/10-4 R	13.06.1981	2314	2363
  25/10-8	07.04.1997	2577	2601
  25/10-10	02.04.2010	2488	2513
  25/10-15 S	02.08.2016	2628	2668
  25/11-17	22.03.1993	2146	2233
  25/11-29 S	13.05.2019	2230	2304
  6201/11-3 R	20.10.2012	2940	3000
  6608/6-1	11.08.2019	2468	2754
  6608/8-1	30.03.1997	2755	3013
  6609/7-1	03.08.1983	1876	1912

• Wellbores with cores

  Wellbores with cores

  Wellbore name	Wellbore completion date	Core length [m]
  1/6-5	02.09.1990	9
  2/6-3	25.02.1983	1
  2/7-29	06.01.1994	0
  2/8-13	22.06.1989	2
  7/3-1	10.06.1969	4
  8/3-1	10.10.1966	9
  9/8-1	29.06.1968	17
  15/5-3	07.12.1980	11
  15/12-3	22.12.1980	7
  16/1-29 S	03.06.2018	15
  16/1-34 A	15.09.2021	9
  16/2-7	01.09.2011	19
  16/3-5	07.03.2013	17
  16/3-7	08.11.2013	14
  16/3-8 S	16.03.2014	42
  25/10-2 R	08.07.1972	12
  6608/8-1	30.03.1997	9