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Dreimani Formation

ID: 382

General info

Unit nameDreimani kihistu
Unit nameDreimani Formation
Belongs toBaltic lithostratigraphy (Ordovician)
Typelithostratigraphy
RankFormation
Scoperegional
RegionLatvia 1 ns: Latvia 3
Statusformal standard
AuthorSpringis
Year1974
EtymonDreimaņi, vil (L)
Original locality*Dreimani-11 core, 1015,5-1027,5m
AgeKukruse Stage
IndexO3dr
Remarksns: Saldus-5RM core, 1073,0-1083,4m [6]

Stratotypes

TypeLocalityDepth (m)ReferenceRemarks
holostratotype1015.50..1027.50Springis, 1974Dreimaņi-11
neostratotypeSaldus 5PM borehole1073.00..1080.40Brangulis et al., 1989

Chemical composition and other properties

Variableminavgmaxstdcount
Al2O3 [%]1.290003.785555.620001.166799
Ba [ppm]0.010000.012990.018000.002398
CaO [%]30.7100039.6587549.610004.3764416
Cl [%]0.050000.050000.050000.000001
CO2 [%]40.7400040.7400040.740000.000001
Cr [ppm]0.002000.002000.002000.000008
delta13C [‰]-0.380000.210350.620000.2293028
delta18O [‰]-6.18000-4.91392-4.050000.5689028
Dry density [kg/m3]2445.000002526.777772637.0000062.684009
Fe2O3T [%]1.510002.010002.550000.302797
Fe2O3total [%]0.840000.925001.010000.085002
FeO [%]0.120000.345550.600000.165879
Grain density [kg/m3]2710.000002732.222222754.0000013.782259
Insoluble Residue [%]5.3800018.3511130.460006.939529
K2O [%]0.510001.430002.210000.500759
LOI [%]30.3000034.3250037.800002.345078
MgO [%]0.810002.423124.860001.1368016
MnO [%]0.101000.143110.182000.025319
Na2O [%]0.030000.125550.620000.175889
P-wave velocity [m/sec in dry sample]4323.000004323.000004323.000000.000001
P-wave velocity [m/sec in wet sample]4415.000004592.500004770.00000177.500002
P2O5 [%]0.121000.270220.430000.114149
Porosity [%]3.420007.5933311.210002.440769
S [%]0.020000.037500.055000.017492
SiO2 [%]4.5500013.1288821.700004.670709
SUM [%]99.8000099.95000100.400000.180278
TiO2 [%]0.060000.211110.340000.074899
V [ppm]0.002000.002710.003000.000458
Wet density [kg/m3]2556.000002600.333332671.0000035.590269

Specimens in collections (approximately): 21

Samples in collections (approximately): 37

Thickness map (partial data only)

Localitybase, mtop, mthicknessreferencepreferred
Häädemeeste 172 borehole 504.10 488.60 15.50 Kajak 1969 1
Viljandi 91 borehole 373.00 359.20 13.80 Kajak 1969 0
Põlva 423 borehole 390.10 376.70 13.40 Kajak 0
Tartu 453 borehole 339.40 326.70 12.70 Põldvere, Anne et al., 1998 1
Elva 555 borehole 361.50 348.90 12.60 Kajak 1971 0
Varbla 502 borehole 373.80 361.70 12.10 Kala, 1972 Kala 1972 1
Are 171 borehole 310.00 297.90 12.10 Kajak 1969 0
Mehikoorma 421 borehole 330.70 318.80 11.90 Põldvere, Anne 1
Ristiküla 174 borehole 446.30 434.60 11.70 Kajak 1969 1
Abja 92 borehole 441.00 429.60 11.40 Kajak 1969 1
Taagepera borehole 492.00 481.80 10.20 Perens, H 1982 1
Ruhnu 500 borehole 666.80 659.70 7.10 Põldvere, Anne (koost), 2003 1
Valga 10 borehole 409.50 403.70 5.80 Põldvere, Anne (koost), 2001 1
Kuressaare K3 borehole 383.70 377.90 5.80 1
Võru (Reedo) borehole 417.00 427.70 -10.70 Vingisaar 0