2010-07-15_REVISION - M1983194

• Permit No: M1983194
• IBM Index Class Name: Revision
• Doc Date: 7/15/2010
• Doc Name: Volume 2, section 4 ‎(non-confidential)‎
• From: Natural Soda
• To: DRMS
• Type & Sequence: TR30
• Email Name: THM
• Media Type: D
• Archive: No

Figure 4-23. East-west structural cross-section of the Lease area (data from
Dyni, 1974a; Cole and others, 1982; and IRI files) . ....................... .. 4-84
Figure 4-24. Mineralogic facies map of the Boies (L-5A) Bed ............................ ..4-88
Figure 4-25. Stratigraphic column of nahcolite facies of Boies Bed in core
hole MMC-IRI-1 (data from IRI files) .............................................. ..4-90
Figure 4-26. Isopach map of the Boies Bed in the Lease area . ......................... .. 4-92
Figure 4-27. Isopach map of the interval between the top of the Boies Bed
and the Dissolution Surface in the Lease area .............................. .. 4-93
Figure 4-28. Stratigraphic cross-section A-A' of the Boies Bed and
associated horizons ....................................................................... ..4-95
Figure 4-29. Stratigraphic cross-section B-B' of the Boies Bed and
associated horizons ....................................................................... ..4-96
Figure 4-30. North-south stratigraphic cross-section of Lower Salt interval
(data from Dyni, 1974a and IRI files) ............................................. 4-101
Figure 4-31. East-west stratigraphic cross-section of Lower Salt interval (data
from Dyni, 1974a and IRI files) ...................................................... 4-102
Figure 4-32. Stratigraphic column of the Love (L-4D) nahcolite bed (taken
from Cole and others, 1982) .......................................................... 4-104
Figure 4-33. Stratigraphic column of the Greeno (R-3D) nahcolite bed (taken
from Cole and others, 1982). Note: Densely disseminated
nahcolite is equivalent to honeycomb nahcolite . ........................... 4-107
LIST OF TABLES
Table 4-1. Stratigraphic units in north-central and northwest Colorado ............... 4-12
Table 4-2. Summary of Core Holes in the Lease area ....................................... .. 4-38
Table 4-3. Stratigraphic thicknesses for core holes in the Lease area ............... ..4-40
Table 4-4. Resource characteristics of the Parachute Creek Member as
represented by core hole MMC-IRI-1 . ........................................... .. 4-52
Table 4-5. Resource characteristics of mappable nahcolite beds in the Saline
Zone .............................................................................................. .. 4-61
Table 4-6. Resource characteristics of the Boies Bed Based on core holes
drilled by Multi Mineral Corporation ............................................... .. 4-63
Table 4-7. Resource characteristics of the Greeno Bed in Multi Mineral
Corporation core holes .................................................................. 4-106
Table 4-8. Resource characteristics of the TI Bed in the Lease area based on
drilling information by Multi Mineral Corporation ............................ 4-110
Table 4-9. Geological Abbreviations Used in the Core, Lithologic, Frcture and
RQD Logs ...................................................................................... 4-146
Daub & Associates, Inc. Page III NSI Mine Plan 2010 Rev.
Printed: 7/5/2010 Section 4 Geology