Peneconcordant uranium deposit; a proposed term

Stratabound Ore Deposits in the Andes

“…In contrast to the scholarly interpretation elaborated previously on the origin of the Corocoro ores, the present chapter shows new evidence in favor of a re-definition on the ore deposit as an example of the peneconcordant type, a term used by Finch (1959), i.e., new among the evaporite-related copper-bearing deposits of the central Andes.…”

“…Considering the simultaneous existence of both stratabound ores and transversal structures at the Corocoro mine, the copper-bearing deposit must be redefined in the category of "peneconcordant" ore deposits, suggested initially by Finch (1959) for some uranium-bearing redbed type of ore deposits from the western United States, in which the role of the main stratabound ores is related to occurrences of subordinate veins and veinlets.…”

“…a) The Corocoro copper ore deposit belongs to a peneconcordant type (Finch 1959) of stratiform red-bed environment in which the deposition of the ore solutions is linked to diapirism, i.e., the pressure exerted by the rising Jalluma gypsum. Consequently, the partial dissolution of halite and gypsum caused the transport and geochemical re-distribution of copper, by means of meteoric waters of a very low temperature, unrelated to hydrothermal events.…”

Uranium in carbonate rocks

“…The largest and richest uranium deposits in carbonate rocks within the United States are of the type called peneconcordant by Finch (1959). These deposits are "tabular, lenticular, or irregularly shaped masses of widely differing size that are, in general, concordant to the gross sedimentary structures of the enclosing rock burt th'3Jt, in detail, cut across sedim•entary structures.…”

Principal uranium deposits of the world

“…;Petrov and others, 1969;Fomin, 1968;Tananaeva, 1968; "Uranium resources estimates", edited by European Nuclear Energy Agency and the International Atomic Energy Agency, 1967;Wambeke, 1967;Tishkin, 1966;Gotman and Zubrev, 1963;Lang and others, 1962;Little, 1970;Danchev, 1961;Kotlyar, 1961;Surazhakiy, 1959Surazhakiy, , 1960Griffith and others, 1958;Robinson, 1958;Ruzicka, 1975;Tishkin and others, 1958;Klepper and Wyant, 1957;and Sullivan, 1957). The geologic classification of deposits as used in this report (table 2) is seven-fold; (1) deposits that are peneconcordant (Finch, 1959a) with the sedimentary structures of the enclosing rocks, which are predominantly sandstones (a single placer deposit is also included in this classification); (2) deposits in quartz-pebble conglomerates;…”