NDLI: The porphyry to epithermal transition in a magmatic-hydrothermal system: Valea Morii copper-gold deposit, Apuseni Mts, Romania

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The porphyry to epithermal transition in a magmatic-hydrothermal system: Valea Morii copper-gold deposit, Apuseni Mts, Romania

Content Provider	Semantic Scholar
Author	Kouzmanov, Kalin Pettke, Thomas Heinrich, Christoph A. Riemer, Stiene Ivascanu, P. M. Roşu, Emilian
Copyright Year	2003
Abstract	Porphyry Cu-Au mineralisation with associated potassic and phyllic alteration and low-sulphidation epithermal quartz-sulphide-gold-carbonate veins, are telescoped within a vertical interval of >400 m in the Valea Morii deposit, Romania. The deposit is located in the eastern part of the Barza magmatic structure – the richest goldbearing magmatic-hydrothermal system of the South Apuseni Mountains Miocene metallogenic district. It consists of a steeply dipping intrusion of quartz diorite crosscut by a younger quartz microdiorite subvolcanic body. The field observations and time relationships between the porphyry and epithermal styles of mineralisation and host rocks in both intrusions give evidence for successive development of alternating porphyry-style veining and igneous breccias, followed by several porphyry and epithermal stage hydrothermal breccias. Detailed petrographic study allowed reconstruction of the complex scenario of magmatic and hydrothermal events. EMP and LA-ICPMS analyses of magmatic and hydrothermal minerals, isotopic magmatic geochemistry and tracing, and microthermometric together with LA-ICPMS analyses of fluid and melt inclusions, are currently in progress in order to constrain the chemical, spatial and temporal evolution of the magmatic-hydrothermal system in Valea Morii and to trace the porphyry to epithermal transition
Starting Page	303
Ending Page	306
Page Count	4
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www.research-collection.ethz.ch/bitstream/handle/20.500.11850/52301/KouzmanovEtAl_ValeaMorii_SGA2003_GOA__52301.pdf?isAllowed=y&sequence=2
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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