Dataset of Okazaki et al., CT data of listvenite from Hole BT1B drilled by ICDP Oman Drilling Project

Contents of the dataset:

1. Downhole_mineral_BT1B_loadA_all03292020.m: a MATLAB script calculating the mineral fraction from XCT images. Results were saved in “Result_mineral_03292020.mat”.

2. Downhole_countPorosity_BT1B_loadA_all_06072020.m: a MATLAB script calculating porosity. Results were saved in “Result_porosity_06082020_2.mat”.

3. Downhole_countHeavyM_BT1B_loadA_all_06072020.m: a MATLAB script calculating the volume fraction of heavy minerals. Results were saved in “Result_heavy_mineral_06082020.mat”.

4. 805C5704BxxxZyy: folders containing analytical results from XCT images from Core xxx Section yy from the Hole BT1B as listed below. 

4-1. Result_CTmeanmode_04072020.mat: results of mean and mode of CT numbers of each XCT X-Y slice from Core xxx Section yy.

4-2. Result_mineral_03292020.mat: contains QMD (quartz-magnetite-dolomite fraction in volume fraction), abc123 (fitting results of a_i, b_i and c_i in Eq. 4 in the manuscript), abc95 (95% confidential intervals of a_i, b_i and c_i.), and R2 (R²-value of fitting results).

4-3. Result_porosity_06082020_2.mat: fitting result of porosity from Core xxx Section yy.

4.4. Result_heavy_mineral_06082020.mat: fitting result of the volume fraction of heavy minerals from Core xxxSection yy.

5. downholemineral_RZZ_03292020.mat: average of mineral fraction of each core section. ZZ indicates the applied threshold R²-value. This file contains following variables;

sec: section number of the core sample,

core: core number of the core sample, 

depth: downhole depth at the top of the core sample, 

Quartz: average volume fraction of quartz in the core sample,

Magnesite: average volume fraction of maginesite in the core sample, 

Dolomite: average volume fraction of dolomite in the core sample,

molSiO2: average mole fraction of SiO₂ in the core sample, 

molMgO: average mole fraction of MgO₂ in the core sample,

molCaO: average mole fraction of CaO in the core sample, 

6. downhole_CT_porosity_06082020.mat: average of porosity of each core section with threshold R²-value of 0.99.

7. downhole_heavymineral06082020.mat: : average of the heavy mineral fraction of each core section with threshold R²-value of 0.99.