Figures F1-F6
Tables T1-T2

F1. Location of the Middle Valley.

F2. Locations of the holes drilled during Legs 139 and 169.

F3. ²³¹Pa/²³⁵U vs. ²³⁰Th/²³⁴U ratios of samples investigated.

F4. North-south section across the BHMS deposit.

F5. 234U/238U ratios vs. ²³⁰Th/²³⁴U.

F6. ²³⁸U vs. depth in samples investigated.

Tables T1-T2

T1. XRD and radionuclide analyses.

T2. Radionuclide data used for age calculations.

Figures F1-F6
Tables T1-T2