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Table 4 Sample cores and their associated sample ID [consisting of well number (NM#), depth and sample #], formation name, microstructure type, dry bulk density, and connected porosity

From: Matrix permeability of reservoir rocks, Ngatamariki geothermal field, Taupo Volcanic Zone, New Zealand

Sample ID (well #, depth, sample)

Formation name

Microstructure type

Dry bulk density (kg/m3)

Connected porosity (%)

NM2 1354.2 A

Tahorakuri

Mixed pores and microfractures

2070

20.3

NM2 1354.2 B

Tahorakuri

Mixed pores and microfractures

2100

18.6

NM2 1354.4 A

Tahorakuri

Mixed pores and microfractures

2160

19.3

NM2 1788 A

Tahorakuri

Mixed pores and microfractures

2470

10.0

NM2 2254.7 A

Tahorakuri

Microfracture dominated

2570

4.9

NM3 1743 A

Tahorakuri

Microfracture dominated

2540

6.0

NM3 1743 C

Tahorakuri

Microfracture dominated

2510

6.3

NM4 1477.2 A

Tahorakuri

Microfracture dominated

2670

2.9

NM8a 2525.5 B

Tahorakuri

Microfracture dominated

2600

2.5

NM8a 2525.5 C

Tahorakuri

Microfracture dominated

2580

3.3

NM8a 3280 C

NIC Tonalite

Microfracture dominated

2510

3.1

NM8a 3284.7 C

NIC Tonalite

Microfracture dominated

2490

4.0

NM11 2083 A

Tahorakuri

Pore dominated

2290

14.3

NM11 2083 B

Tahorakuri

Pore dominated

2270

15.3

NM11 2083 C

Tahorakuri

Pore dominated

2290

14.7

NM11 2083.34 A

Tahorakuri

Pore dominated

2300

14.0

NM11 2083.34 B

Tahorakuri

Pore dominated

2280

14.9

NM11 2087.4 A

Tahorakuri

Pore dominated

2350

12.9

NM11 2087.4 B

Tahorakuri

Pore dominated

2310

14.4

NM11 2087.4 C

Tahorakuri

Pore dominated

2320

14.2

NM11 2087.4 D

Tahorakuri

Pore dominated

2340

13.4

  1. NIC, Ngatamariki Intrusive Complex