Contents DESCRIPTIVE MODEL OF PODIFORM CHROMITE .................................................................................. 9 MODEL 8a and 8b .............................................................................................................................................. 9 DESCRIPTION Podlike masses of chromitite in ultramafic parts of ophiolite ............................................ 9 GEOLOGICAL ENVIRONMENT .................................................................................................................... 10 DEPOSIT DESCRIPTION ................................................................................................................................ 11 EXAMPLES ........................................................................................................................................................ 11 DESCRIPTIVE MODEL OF SERPENTINE‐HOSTED ASBESTOS .................................................................................. 11 MODEL 8d .......................................................................................................................................................... 11 GEOLOGICAL ENVIRONMENT .................................................................................................................... 11 DEPOSIT DESCRIPTION ................................................................................................................................ 12 EXAMPLES ........................................................................................................................................................ 12 Thetford-Black Lake, CNQU (Riordon, 1957) ................................................................................................. 12 DESCRIPTIVE MODEL OF W SKARN DEPOSITS ...................................................................................................... 12 By Dennis P. Cox ............................................................................................................................................. 12 MODEL 14a ........................................................................................................................................................ 12 GENERAL REFERENCE Einaudi and Burt (1982), Einaudi and others (1981). ............................................ 12 GEOLOGICAL ENVIRONMENT .................................................................................................................... 13 DEPOSIT DESCRIPTION ................................................................................................................................ 13 EXAMPLES ........................................................................................................................................................ 13 MacTung, CNBC (Dick and Hodgson, 1982) ..................................................................................................... 13 Strawberry, USCA (Nokleberg, 1981) ............................................................................................................... 13 Appendix A Eastern Interior Planning Area Page 1 of 62 Mineral Potential and Develpoment Potential Report DESCRIPTIVE MODEL OF Sn SKARN DEPOSITS ..................................................................................................... 13 MODEL 14b ........................................................................................................................................................ 13 GENERAL REFERENCE Einaudi and Burt (1982), Einaudi and others (1981), Scherba (1970). .................. 14 GEOLOGICAL ENVIRONMENT .................................................................................................................... 14 DEPOSIT DESCRIPTION ................................................................................................................................ 15 EXAMPLES ........................................................................................................................................................ 15 Moina, AUTS (Kwak and Askin, 1981) ............................................................................................................... 15 DESCRIPTIVE MODEL OF Sn VEINS ........................................................................... Error! Bookmark not defined. MODEL 15b ............................................................................................................ Error! Bookmark not defined. GENERAL REFERENCE Hosking (1974), Taylor (1979). .................................. Error! Bookmark not defined. GEOLOGICAL ENVIRONMENT ........................................................................ Error! Bookmark not defined. DEPOSIT DESCRIPTION .................................................................................... Error! Bookmark not defined. EXAMPLES ............................................................................................................ Error! Bookmark not defined. Cornwall, GRBR (Hosking, 1969) .......................................................................... Error! Bookmark not defined. Herberton, AUQL (Blake, 1972) ............................................................................ Error! Bookmark not defined. DESCRIPTIVE MODEL OF Sn GREISEN DEPOSITS .................................................................................................. 16 MODEL 15c ........................................................................................................................................................ 16 GENERAL REFERENCE Scherba (1970), Taylor (1979), Reed (1982), Tischendorf (1977). ........................ 16 GEOLOGICAL ENVIRONMENT .................................................................................................................... 16 DEPOSIT DESCRIPTION ................................................................................................................................ 17 EXAMPLES ........................................................................................................................................................ 17 Lost River, USAK (Dobson, 1982; Sainsbury, 1964) ......................................................................................... 18 Appendix A Eastern Interior Planning Area Page 2 of 62 Mineral Potential and Develpoment Potential Report Erzgebirge, CZCL (Janecka and Stemprok, 1967) ............................................................................................ 18 DESCRIPTIVE MODEL OF Fe SKARN DEPOSITS ..................................................................................................... 18 MODEL 18d ........................................................................................................................................................ 18 GENERAL REFERENCES Einaudi and Burt (1982), Einaudi and others (1981). ......................................... 18 GEOLOGICAL ENVIRONMENT .................................................................................................................... 18 DEPOSIT DESCRIPTION ................................................................................................................................ 18 EXAMPLES ........................................................................................................................................................ 19 Shinyama, JAPN (Uchida and Iiyana, 1982) ..................................................................................................... 19 Cornwall, USPA (Lapham, 1968_) ..................................................................................................................... 19 Iron Springs, USUT (Mackin, 1968) .................................................................................................................. 19 DESCRIPTIVE MODEL OF Zn-Pb SKARN DEPOSITS ............................................................................ 19 MODEL 18c ........................................................................................................................................................ 19 GENERAL REFERENCES Einaudi and Burt (1982); Einaudi and others (1981). ......................................... 19 GEOLOGICAL ENVIRONMENT .................................................................................................................... 19 DEPOSIT DESCRIPTION ................................................................................................................................ 20 EXAMPLES ........................................................................................................................................................ 20 Ban Ban, AUQU (Ashley, 1980_) ...................................................................................................................... 20 DESCRIPTIVE MODEL OF POLYMETALLIC REPLACEMENT DEPOSITS .................................................................... 21 MODEL 19a ........................................................................................................................................................ 21 GENERAL REFERENCE Jensen and Bateman (1981), p. 134-146. ............................................................ 21 GEOLOGICAL ENVIRONMENT .................................................................................................................... 21 Rock Types Sedimentary rocks, chiefly limestone, dolomite, and ..........................................................