Geofluids / 2019 / Article / Tab 2

Research Article

A Review of the Hydrochemistry of a Deep Sedimentary Aquifer and Its Consequences for Geothermal Operation: Klaipeda, Lithuania

Table 2

Minerals identified (by X-ray diffraction) in core material recovered from reservoir depth in the Klaipeda 1I sidetrack (samples designated KLA1I) and from the deep boreholes Palanga-318 (PAL) and Vydmantai-1 (VID). The figures forming the latter part of the sample number indicate depths in m.
(a)

Core sampleKLA 1I AKLA 1I BPAL 875PAL 896.5PAL 936PAL 970PAL 975.5PAL 990VID 903.3
LithologyRed-grey sandstoneReddish clayReddish-grey sandstoneGrey siltstoneGrey-red sandstoneGrey-green sandstoneGrey-white clay

MineralsCalciteQuartzQuartzQuartzQuartzQuartzQuartzQuartzQuartz
PyriteDolomiteMnSMuscoviteMnSMagnetiteMnSDolomiteBiotite
MnSCalciteBiotiteMnSCalciteMnSKaolinite
OrthoclaseKaoliniteKaoliniteKaoliniteMnS
QuartzMnSBiotite
HematiteIllite

(b)

Core sampleVID 913.5VID 944.9VID 954.4VID 958.5VID 962.5VID 964VID 971VID 972VID 980
LithologyGrey-green clayWhite clayGrey clayGrey-green clayReddish clayReddish clayGrey sandstone with clayGrey clayWhite clay

MineralsQuartzQuartzQuartzQuartzQuartzQuartzQuartzQuartzQuartz
IlliteCalciteBiotiteKaoliniteHematiteMnSBiotiteBiotiteMnS
KaoliniteMnSKaoliniteIlliteIlliteIlliteKaoliniteMnSKaolinite
MuscoviteMnSBiotiteKaoliniteChlorite
MnSChloriteChlorite
Muscovite

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