The Alaska daily empire., 1922-01-02
eContinHed From Page One.).

uatlOn was so e&pG.Slve that only tne J richest ore would stand shipment Therefore the galena ore was hand l. picked, the grade of shipment being l: thus brought to an average of about !. 182 ounces of silver and $320 in gold . to the ton, in addition to the lead !. and some copper.
 The Lode from which this ore cama
 and others at. nearby localities are
 at or near Eureka Creek The dapos-
 it's lie in well-defined Assures travers-
 ing schistose rocks and are associat-
 ed with granite intrusives. Some of
 the ore. bodies are 8 to 15 feet wide,
 but the rich galena is in shoots from
 6 inches to 21a feet in width Gold bearing quartz veins of similar type
 are also found in this part of the ! district. as well as some deposits of ant!m0ny (stibnMa1. The few open
 ings made indicate that the lodes are fairly persistent along the strike. 1 In 1921 sulphide-bearing lodes were
 discovered in the foothills of the Al
 aska Range 20 miles southeast of Flu
 reka Creek. in the Kantishna dis i trict. These deposits were found by ! perienced prosrectors, who stake1 22
 claims. They lie some 14 miles from timber, but Ignite beds are close at hand. They are readily accessible to pack horses. The construction os
 about 50 miles of wagon road would
 tho L,S. Nv witt ha Iy, Railroad at Riley Creek. Granodio- rite is the prevailing country rock of
 the region and is found both in large aress and as dikes. Banded and massive quartzftes with some lime. stones and slate cut by granodiorite dkes constitute the formations in which the ores have been found. The sedimentary beds are much deformed and trend a little north of west,
 The ore bodies are distributed through, a zone that trends little north of east and thus appar ently cuts across the bedding of the sedi- ments. It has been traced about two miles and is reported to be longer As determined by present discoveries. its width is from one-fourth to one
 mile wide The zone is characterized hy an abundance of sulphide miner als. concentrated in more or less well defined ore bodies. Some of these bodies have definite walls; in others the ore grades into the country rock. They occur chiefly in the quartzites,
 but some are in the granodiorite and
 others at the contact between the two. As no excavation has been done it is difficult to give exact state inents as to width. At some place there is evidence of sulphide miner alization over width of about 100 feet butt in these places the rich s1l- pJides appear to be limited to cer- tain shoots. Most of the lodes are much smaller and consist of shoots
 in zones 10 to g feet wide The ore consists chiefly of. galena, chal- copyrite, zinc blende, iron pyrite, and
 bornNe. Among these minerals ga | lena appears to dominate. A granu- i lar intergrowth of galena with cflai- copyrite appears to form the typical ore, hut larger masses of pure ga lena are also found. The gangue cort5id5s of quartz ard of the country rock chiealy quartzite. In the ab-
 sence of salnpling or even of cuts ex- posing the ere, a definite statement of metallic content is not justified. The grab samples taken by owners of claims have yielded from 020i
 to 270 ounces of silver and from a
 trace to $8 in gold to the ton. Three samples carried from 1.17 to 8.S7 per cent of copper
 No work had been done on the
 Grant & Jiles claims when they were
 examined, nor rl the other prospects reported in the same general region. Their value can therefore not be pre- dicted, but the surface exposures fiji ly justify careful prospecting.
 Gold Piacers
 Alaska placer mines produced gold
 to value of about s4,090, 900 in 1921
 and $3,873,0O0 in 1920. This increase
 is to be credited chiefly to the Kus-
 kckwiin placer districts. At the end
 of 1921 the Alaska mines had pro-
 duced total of s32S, 900 900 worth of
 gold, of which $222, 900, 900 came from
 placer mines.
 A number of new finds of placer
 gold were made during 1921, but these were all in known fields of audMerous alluxium. The most prom
 ising of these discoveries is on Will
 bur Creek. tributary of Toloyana
 River, about seven miles due east of Lvengood Creek. The finding Of
 coarse gold on this creek indicates th-A there may be a second belt of
 mineraEzation in the Tolovana area. Another deposit of placer gold was
 found on Kokono Creek, southerly triblasary of Chatanika River, 10 miles
 east of Cieary. This discovery is l significant chiefly because it indi-
 ca,.es an eastern extension of the
 auriferous area. In 1921 placer min | ing was begun on gold prospects that
 had been found in 1918 on Stuyahok Creek, a tributary to Bonasfia River,
 which flows into the Yukon 10 miles