In. Tomson et al., RELATIONS BETWEEN DIFFERENT TYPES OF TIN MINERALIZATION IN SOUTHERN SIKHOTE-ALIN (RUSSIA), Geology of ore deposits, 38(4), 1996, pp. 318-332
Two cycles of tin mineralization, Late Cretaceous and Eocene, were est
ablished in southern Sikhote Alin. The tin mineralization of the Late
Cretaceous cycle was subdivided into two series that developed simulta
neously but were related to different magmatic complexes. The first se
ries is associated with leucocratic granitoids, whereas the second is
related to granitoids of an elevated basicity. The deposits of both se
ries are generally closely confined to contacts of granitoids and occu
r within the halos of contact hornfels Late Cretaceous. The mineraliza
tion processes of both Late Cretaceous series started with the formati
on of two complex multimetal ore deposits: (1) greisen-polymetallic an
d (2) tourmaline-massive sulfide with manganese minerals. The later de
posits of these series are represented by various deposits and are occ
urrences of Sn, Pb-Zn, W,Ag-Pb-Zn, and other metals. The Eocene deposi
ts occur at some distance from the contacts between granitoids and hor
nfels. They are often associated with basic dikes and represented by v
eins containing abundant tourmaline or chlorite and subordinate sulfid
es. Both Late Cretaceous and Eocene deposits are localized at several
depth levels and reveal zonality relative to the contacts of granitoid
s and biotization halos.