The Cordova daily times., 1920-11-20

1 staked as early as 1907 or 1908. Moi , fit, who in 1911 visited the deposits on the west side of the creek has described them briefly, and apparently little development work has been done on them since that time The sixteen claims, which are consoli- dated, are held by three or four men. Six of these claims are on the west ! side of Canyon creek near its head, four on the east side, four just over
 the ridge on the east side, and two opposite the mouth of Fall creek on the ridge along the south side of Can yon creek. The principal develop ment work has been done on the
 claims west of Canyon creek At the
 time of visit in 1917 no work was being done on any of the claims
 The country rock of the Canyon
 creek valley is schist of probable car 1 bOniferOus age. The numerous bodies of igneous rock that have intruded !
 their rusty looking croppings. The
 shapes of these bodies are irregular, 1 but the irregularity is probably due
 in part to faulting which took place
 after intrusion. The slickensided sur
 faces found along the contact between schist and igneous rock indicate that i f1, ino hot IL
 trace shows prominently on the face
 of cliff on the west side of Canyon creek. The intrusive bodies range from acidic rocks, such as quartz monozite, to basic rocks. such as peri dotites. Quartz stringers are also rather abundant in the schist
 ! The most promising of the ex- , posures and the one on which the
 most development work has been
 done is on the west side of Canyon ] creek about 800 feet above the bed
 of the creek, or 4,10O feet above
 sea level. Some shallow pits have been sunk on the Outcrop and a 5O-
 foot tunnel has been driven in an
 attempt to undercut the ore body Several other holes have been put ! down to find the continuation of the l body up the hill. The outcrop of the
 body is plainly visible from the
 creek, for one end of it is cut off by
 a cliff, and the face of this cliff is
 stained a bright yellowish brown and
 green. As exposed at the surface the
 ore body is an irregular mass about i 25 feet wide, which strikes about north 65 degrees west and apparent ! ly dips very steeply to the north. he westward extension of this body
 can be traced only a short distance
 on the surface, and it's eastward eX- tension is cut off within a short dis i taEce by steep cliff. The section
 of the body outlined on the cliff | face has a width of about 25 feet
 for possibly 50 feet down the cliff
 and is there cut by a fault. An iron
 stained streak a foot or more wide
 follows the fault trace down the 1 cliff. At the bottom of the cliff
 a tunnel has been driven into a i crushed zone about a foot wide
 which includes with the crushed ma
 terial a little mneralized basic rock. 1 The face of the cliff is inaccessible, | al Int l exposures there could not be made.
 The country rock in which the
 nickcl-6earing body occurs is light
 gray limy and quartzose schist strillz. l ing north S4 degrees west and hay
 ing vertical dip, into which peri
 dotite has been intruded. The peri
 dotite is rather strongly mineralized
 in places with sulphdes, and it is
 with these sulphides that the nickel | is associated. This schist, which is
 recrystallized impure limestone. is
 seen under the microscope to consist chiefly of coarse calcite crystals l separated by flakes of bi0tite, chert. hornblende muscOvite and zosite. | Along the hanging wall of the ore | body lies light-cOlOred igne0us rock
 that may represent an acidic differ
 entiation product of a magma of
 which the nickelbearing basic rock
 along the footwall is the other .ex-
 treme. This acidic rock is very l light colored and medium grained
 and contains few scattered garnets.
 A thin section shows that it consists
 chiefly of quartz, orthoclase and
 altered plagioclase, The quartz and
 orthoclase together are about equal
 in amount to the altered plagioclase.
 Some garnet and a few flakes of
 biotite and muscovite are present. | The altered feldspar has been so far