MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 093F 007

File Created:	24-Jul-1985	by	BC Geological Survey (BCGS)
Last Edit:	20-Apr-2021	by	Nicole Barlow (NB)

SUMMARY

Summary Help


		NMI	093F15 Mo4
Name	NITHI	Mining Division	Omineca
		BCGS Map	093F096
Status	Showing	NTS Map	093F15W
Latitude	053º 58' 46''	UTM	10 (NAD 83)
Longitude	124º 48' 19''	Northing	5982743
		Easting	381613
Commodities	Molybdenum	Deposit Types	L05 : Porphyry Mo (Low F- type)
Tectonic Belt	Intermontane	Terrane	Stikine, Cache Creek

Capsule Geology

The region in which the showing occurs is within the Intermontane Belt, underlain dominantly by Lower to Middle Jurassic volcanic and sedimentary rocks of the Hazelton Group. These assemblages are overlain by the Upper Cretaceous to Lower Tertiary Ootsa Lake Group and Miocene plateau basalt. Intruding Lower Jurassic rocks of the Hazelton Group in the northeastern part of the map sheet is a belt of granodiorite, diorite and quartz diorite plutons of the Lower Jurassic Topley intrusive suite. Felsic plutons of probable Cretaceous age intrude both Lower and Middle Jurassic Hazelton strata.

The Nithi showing is underlain by felsic rocks of the Topley intrusive suite, mainly quartz monzonite that varies from nonporphyritic to porphyritic with phenocrysts of quartz and feldspar. Intruding the quartz monzonite is a granitic phase known as the Casey Granite that varies in composition from quartz monzonite to alaskite. Molybdenite mineralization occurs in sericitized Casey quartz monzonite in fractures and veinlets and as disseminations. Mineralization is most often found in the fracture sets bearing 70 degrees and sometimes in ones bearing 160 degrees. The quartz monzonite has been highly oxidized and leached in areas of molybdenite mineralization. In some veinlets specular hematite is also present.

In 1969, the northeast and southern slopes of Nithi Mountain were being prospected staked by Nithex Exploration and Development Limited. A geochemical survey was completed in 1970 and outlined and an anomalous area 1200 by 1600 metres. Grab samples from this area returned values ranging from 0.09 to 0.98 per cent MoS2 (Property File Cyprus Anvil Nithex Exploration and Development Corp., 1971).

Bibliography

EMPR AR 1963-37; 1965-Figure 24; 1966-118

EMPR ASS RPT 2668, *3546, 5714, 5489, 8399, 8470, 9110, 9368, 10314

EMPR EXPL 1975-E132; 1976-E142; 1978-E202; 1980-323; 1982-292;

1992-69-106

EMPR FIELDWORK 1992, pp. 475-481; 1993, pp. 9-14; 1994, pp. 167-170,

193-197

EMPR GEM 1970-112; 1972-348; 1973-327

EMPR PF (See 093F General File, Nithi Mountain Area Maps; See 093K

General file, Endako Area Maps)

EMPR PF Cyprus Anvil (Nithex Explorations and Development Corp. (1969-01-01): Reconnaissance Geology Map - Nithi Mountain Area; Nithex Exploration and Development Corp. (1966-01-01): Reconnaissance Geology Map - Nithi Mountain - 71-106; Nithex Exploration Development Co. Ltd. (1966-09-01): Reconnaissance Geology Map - Nithi Mountain - 71-106; B.C. Government Air Photograph (1966-09-13): Air Photo - BC5217-213 - Fraser Lake; Nithex Exploration and Development Corp. (1969-01-01): Reconnaissance Geology Map - Nithi Mountain Group; Lockwood Explorations Corp. Ltd. (1969-01-01): Airborne Geophysical Survey - Electomagnetic Map - Fraser Lake Area; Lockwood Exploration Corp. Ltd. (1969-01-01): Airborne Geophysical Survey - Magnetometric Map - Fraser Lake Area; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 11; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 10; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 9; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 8; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 7; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 6; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 5; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 4; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 3; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile - Fraser Lake - Line 2; Lockwood Survey Corp. Ltd. (1969-03-05): Airborne Geophysical Profile Fraser Lake-Line 1; Lockwood Survey Corp. (1969-04-30): Air Photo - No. 3464 Buckley Valley - Nithi Mountain; Kidd, R. (1969-06-14): Map of Ground Geophysics - I Project - Anomalie II Area; Sawyer, J.B.P. (1970-02-06): Memo to C.A. Mark Re: Nithi Mountain with 2 claim maps; Kidd, R. (1970-04-26): Report on Airborne Geophysical Work - I Area; Nithex Exploration and Development Ltd. (1970-08-20): Claim Boundary Map - Showing Trenches, Roads and Outrcrops - Sandy, Pogo and Ruff Claims; Nithi Exploration and Development Ltd. (1970-08-20): Geochemical Contours Map - Nithi Mountain; Nithex Exploration and Development Ltd. (1971-01-01): Detailed Geology Map - Nithi Mountain Claims; Nithex Exploration and Development Corp. (1971-03-26): Prospectus Report on the Nithi Mountain Claims)

GSC MAP 1131A; 1424A

GSC MEM 324

GSC P 90-1F, pp. 115-120

EMPR PFD 810058, 810059, 810060, 810061, 810062, 810063, 810064, 810065, 810066, 810067, 810068, 810069, 810070, 810071, 810072, 810073, 810074, 810075, 810076, 810077, 810078, 810079, 810080, 810081, 810082, 810083, 810084, 810085, 810090, 810112, 812059, 812060, 812061, 812062, 812063, 812064, 812065, 812066, 812067, 812068, 812069, 812070, 812071, 812072, 812073, 812074, 812075, 812076, 812077, 812078, 812079, 812080, 812081, 812082, 812083, 812084, 812086, 812087, 812088, 812089, 812090, 812091, 812093, 812872, 886152, 886153, 886154, 672422, 680667, 680668, 680669