Pennsylvania Geology Final Report Volume 1 1981

222 GEOLOGICAL SURVEY OF PENNSYLVANIA.
Banks in the hydromica belt south of York.
Leaders Hill old opening, f m. W. of New Paradise ;
slates dip 84°, S. 70° E. No ore showing.
Hess hank., 5 m. S. of York, 2 m. W. of Logansville ;
150' long, 15' deep ; 1868 ; ore too sandy; slates ashestiform.,
vertical, strike N. 20° E.
Falkenstine shaft, abandoned.
Meyefs {B.) bank, 1200' N. W. of Gladfelter's railroad
lean ore in vertical slate striking N. 30° E.
station ;
StambacK s sJtaft, \ in. W. of station in dark slates
;
holding crystals of micaceous and magnetic ore.
Gladfeltef s bank, f m. W. of station, 10' deep in vertical
slates, striking N. 34° E.
Geisselman s bank, J m. W. of railroad between Gladfelter's
and Seven Valley (Smysers) stations ; four small
shafts sunk 1870, in hydromica slates impregnated with
iron oxide.
Thomas Iron Co.''s banks, J m. S. W. of Smyser's railroad
station ; two banks and three shafts, ^ acre and f acre,
engine house, drifts, etc.*
Walters- bank, | m. N. of W. of Hanover Junction railroad
station 1872 much hard limonite still visible in
; ;
bunches in ciay of decomposed coarse-grained slate ; f acre,
40' deep.
Croufs bank, I m. N. E. of Strickhauser' s station, Han.
Br. RR., 800' along the road, 18' deep; hard, compact
sometimes operated.
sandy limonite ;
KnotwelV s shaft on the York I. Co.'s hill; Aug. 1874,
had reached hard ore (at 27') same as York Co.'s ore.
mat., 10.94; sulphur, none; phosphorus, 0.69; alum., 1.92; lime, 0.17; mag-
nesia, 0.56; manganese, 0.33 ; undetermined, 0.91.
A finely laminated bluish limestone containing white crystalline limestone
scattered through it in spots resembling in certain portions a calcareous
conglomerate, in others simply mottled, appears in both banks, and in the
run, dips 85°, N. 20° W. In a quarry near by it is so mixed with crystalline
hydromica flakes as to mimic hj'^dromica schist, although containing 78 per
cent of carb. lime and magnesia; thickness perhaps 400'. This is an im-
portant observation. (C, p. 15. )
* Statistics in C, p. 27. AnaU'sis : Iron, 51.7 ; no sulphur ; phos., 0.052 ; sil. ,
6.0; alum., 16.4, etc.