Şeyl 20 – 2000 (30 - 10000) Şist 30 - 10000
Tablo 7.2.Çalışmalar sonrasında elde edilen bazı elektriksel yerdirenci değerleri.
Çalışma Bölgesi Direnç Aralığı (Ω-m)
Traverten (Göksu) (13000 – 150000) – (10000 – 35000) Traverten (Yükselen) (3000 - 90000) – (1200 – 5000) Traverten (Emirdağ) (2000 - 8000) – (3000 – 8000) Fillit (150 - 700) – (230 – 270) Serpantin (Bozuk) (10 - 100) Dunit (280 - 700 ) – (700 – 8000) Serpantin (Kayaç) (80 - 5000) – (5 – 7500)
Tablo 7.3. Bazı minerallere ait elektriksel yerdirenci değerleri.
Mineraller Ω-m (Literatür) Deneylerden (Ω-m) Kalkopirit 0,004 Pirit 0,3 Pirolit 0,0001 Galenit 0,002 – (0,9) Sfalerit 200 Zinober 20 milyon Boksit 600 – 200 milyon Kalkosit 0,0001 Kromit 1 milyon 200 – 600 Volframit 200 bin Hematit 0,0035 – 20 milyon (70 – 9000) Manganez 0,01 – 0,3 0,5 – 40
Kuvars 40 milyar >dan büyük
Kalsit 4 trilyon
Kaya tuzu 30 – 40 trilyon
Magnetit (0,1- 1000)
Tablo 7.4. Bazı malzemeler, sular ve kömürlere ait elektriksel rezistivite değerleri.
Malzeme Ω-m (Literatür) Deneylerden
(Ω-m)
Islak aşırı killi toprak 1-10 Islak aşırı siltli toprak =< 10 Islak siltli +kumlu toprak 10 – 100
Siltli kum + çakıl =< 1000
Kaba kuru kum + çakıl => 1000
Çatlakları ıslak toprak dolu kayaç ;; 100
Sular
Yüzey suyu (magmatik ortam) 0,1 -3000 0.1-9
Yüzey suyu (yağış) 30 – 3000 40-65
Yüzey suyu (çakıl içinde) 10 – 100
Toprak suları 100
Doğal kaynak (magmatik) 9 7
Doğal kaynak (çökel) 3
Tuzlu su ( % 3 derişik) 0,15
Deniz suyu (0,2)
Yer altı suyu (genel) (10 – 100)
Kömürler
Linyit 9 – 200 (10 - 300) 80 -250
Çeşitli kömürler 10 – 10 milyar
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