Page 257 - Geology and Geochemistry of Oil and Gas

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TABLE 11.3 MODELS
STATIC
Distribution of A da parameter in the various rocks of Baku Archipelago and Lower Kura Depression in Azerbaijan
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a
Type of rock Baku Archipelago (N ¼ 159) Lower Kura Depression (N ¼ 196) GEOLOGIC
Frequency (in %) of A da intervals (in mV) Mean A da (mV) Frequency (in %) of A da intervals (in mV) Mean A da (mV)
0–15 15–30 30–45 45–60 460 P 0–15 15–30 30–45 45–60 460 P SYSTEMS

Coarse sand 3.8 — — — — 3.8 7.5 — — — — — — —
Medium/fine sands 17.6 3.1 — — — 20.7 9.7 1.5 8.7 3.1 — — 13.3 24.2
Sandy loam 5.7 3.8 — — — 9.5 13.5 1.5 8.7 5.6 1.0 — 16.8 28.0
Chlidolite — — — — — — — 1.5 6.1 2.6 1.0 — 11.2 26.6
Sandy silt 11.3 0.6 — — — 11.9 8.3 — 1.5 4.6 0.5 — 6.6 35.1
Silt 4.4 11.3 3.2 — — 18.9 21.5 — 1.5 0.5 0.5 — 2.6 31.5
Clayey silt 0.6 7.6 12.6 0.6 — 21.4 30.9 0.5 8.7 18.4 11.2 0.5 39.4 38.5
Loam — 0.6 — — — 0.6 22.5 — 2.1 1.5 1.5 0.5 5.6 38.8
Sandy–silty shale — — 2.5 5.7 1.3 9.5 50.3 — — — 3.6 1.0 4.6 55.8
Shale — — — 3.1 0.6 3.7 55.0 — — — — — — —
Overall rocks 43.4 27.0 18.3 9.4 1.9 100 22.4 5.0 37.4 36.3 19.3 2.0 100 33.9
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N ¼ number of samples. 223