The genetic framework of the Recsk ore genesis

Baksa Csaba: The genetic framework of the Recsk ore genesis. In: Acta mineralogica-petrographica, (26) 1. pp. 87-97. (1983)

Előnézet

Cikk, tanulmány, mű mineralogica_026_fasc_001_087-097.pdf Letöltés (894kB) | Előnézet

Absztrakt (kivonat)

Many authors have dealt with the massive and stockwork gold-siiver-copper-pyrite deposit at Recsk since the 1850's when the production from these deposits began. However, several points of genesis and relationships of this relatively unique mineralization have remained unrevealed. Many of the conclusions, which based solely on field data, have since outdated. In the last two decades intense exploration activities, both drilling and underground developments, have provided several new recognitions, which served as basis for a new genetic approach. These were first summarized in a special volume of the Földtani Közlöny [1975], by J. GSEH-NÉMETH, T. ZELENKA, J. CSILLAG, J. FÖLDESSY, K. FÖLDESSY—J ARÁNYI, and the author. Some of these conclusions have been modified or supplemented with new data in the last years. Conclusions were drawn about the setting of this occurrence in the Eocene island arc, which could be traced in SW-NE direction across the Carpathian basin [CSILLAG et a!., 1980]. Similar complexes of slightly different ages are known elsewhere in the Carpathian-Balkan region (Timok, Vardar-zone). The localisation and spatial arrangement of this deposits can be related to the plate convergence-styles through the late Mezozojc-Paleogene period [HADZI et al., 1977]. Evidences were drawn about the young age of the Darno-zone [BALLA et al., 1982], which have questioned the earlier concepts about the Triassic formations at Recsk being part of the Central-Mountain Belt [WEIN, 1969, 1978]. The Eocene Priabonian magmatism followed multiple tectonic deformation, which produced folding and fault-systems. Synchronous sedimentation (with fossiles of Nummulites fabianii stage) and Rb/Sr dates igneous rocks of 35,7+2—5 m. y. [BALOGH, 1975] provided reliable age determination for the mineralization. The multiple phase igneous complex includes diorite-porphyries and andesites. This suite (the Recsk Andesite Formation) is comparable with the dioritic magmatism of eusyncline belts. The ore mineralization is related to the igneous emplacement following the first submarine, volcanic phase. Alteration and mineralization zoning resembles to the diorite-model of HOLLISTER [1978]. In the system of KRIVTZOV and PAVLOVA [1978] it is related to the eusyncline belt diorites. The succesive phases of hydrothermal mineralizations (Cu—Fe—Pb—Zn) were developed both in time and space in the order of the decreasing rate of heat flux from the peripheries toward the centre of the intrusion, and from the early peripheral metasomatic replacement and skarn deposits toward the latest central porphyry copper. A part of these ore were rejuvenated in the consequent magmatic pulses, and brought about the formation of smaller near-surface mineralization in the volcanic superstructure. Though the Cu and Mo contents within the porphyry mineralization does not correlate, the metal content contours correspond well with the geometry of the intrusion, hence, it can be considered as conformable. This arrangement is partly due to the localization characteristics, beneath the stratovolcanic pile.

Mű típusa:	Cikk, tanulmány, mű
Befoglaló folyóirat/kiadvány címe:	Acta mineralogica-petrographica
Dátum:	1983
Kötet:	26
Szám:	1
ISSN:	0365-8066
Oldalak:	pp. 87-97
Nyelv:	angol
Kiadó:	University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Kiadás helye:	Szeged
Befoglaló mű URL:	http://acta.bibl.u-szeged.hu/39403/
Kulcsszavak:	Kőzettan, Ásványtan, Földtan
Megjegyzések:	Bibliogr.: p. 96-97. ; ill. ; összefoglalás angol nyelven
Szakterület:	01. Természettudományok 01. Természettudományok > 01.05. Föld- és kapcsolódó környezettudományok
Feltöltés dátuma:	2016. okt. 17. 09:25
Utolsó módosítás:	2022. júl. 26. 08:09
URI:	http://acta.bibl.u-szeged.hu/id/eprint/24711

Bővebben:

Tétel nézet