K-Ar DATING OF KOZHUH VOLCANIC BODY (SW BULGARIA)

被引：0

作者：

Pecskay, Zoltan ^{[1
]}

Harkovska, Alexandra ^{[2
]}

Petrov, Petar Stefanov ^{[2
]}

Popov, Mitko ^{[2
]}

机构：

[1] Hungarian Acad Sci ATOMKI, Inst Nucl Res, H-40001 Debrecen, Hungary

[2] Bulgarian Acad Sci, Inst Geol, BU-1113 Sofia, Bulgaria

来源：

COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES | 2011年 / 64卷 / 02期

关键词：

K-Ar ages; Kozhuh volcanic body; Middle Miocene; Struma lineament;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Kozhuh subvolcanic body (outcrop of about 1 km(2)) is located NE of the town of Petrich in the confine of the submeridional Struma lineament. The results of conventional K-Ar age determinations of Kozhuh volcanic rocks are presented and discussed with a purpose to solve the problem of their age, which is under discussion (Neogene? or Paleogene?) during many decades. Two whole rock (w.r.) and two monomineral (biotite and plagioclase) samples were dated. According to three of the analyses the Kozhuh volcanics were intruded as a result of Middle Miocene (at about 12.5 Ma) magmatic activity. On the basis of already published and newly obtained radiometric data Kozhuh is correlated with the Neo-Petritsi trachytic subvolcanic body in Northern Greece. The Middle Miocene magmatic manifestations and the following polystage and long lasting hydrothermal activity along the Struma lineament in South-Western Bulgaria and Northern Greece are provoked and controlled by the regional tectonic processes, known as "neotectonic extension".

引用

页码：263 / 268

页数：6

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