Insights into the petrogenesis of low- and high-Ti basalts: Stratigraphy and geochemistry of four lava sequences from the central Parana basin

De Min Angelo; Callegaro Sara; Marzoli Andrea; Nardy Antonio J.; Chiaradia Massimo; Marques Leila S.; Gabbarrini Ilaria

首页> 外文期刊>Journal of Volcanology and Geothermal Research2012V243-244NOCT,15 >Insights into the petrogenesis of low- and high-Ti basalts: Stratigraphy and geochemistry of four lava sequences from the central Parana basin

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Insights into the petrogenesis of low- and high-Ti basalts: Stratigraphy and geochemistry of four lava sequences from the central Parana basin

机译：低钛和高钛玄武岩成因的认识：巴拉那中部盆地四个熔岩层序的地层学和地球化学

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Lava flow sequences were sampled in the central part of the Parana basin aiming to verify the time-related evolution of the Parana basaltic magmatism. It is shown that low- and high-Ti basalts were erupted synchronously. In particular, Esmeralda and Pitanga flows are interlayered, with the former prevailing in the upper part of the sequence. Evidence for synchronously active magma plumbing systems is also supported by mineralogical data, showing signs of mixing between the two groups.

机译：在巴拉那盆地中部取样了熔岩流序列，目的是验证巴拉那玄武岩浆岩的时间相关演化。结果表明，低钛和高钛玄武岩同时爆发。特别是，埃斯梅拉达（Esmeralda）流和皮坦加（Pitanga）流是夹层的，前者在序列的上部占主导地位。矿物学数据也支持了同步活动岩浆管道系统的证据，显示出两组之间混合的迹象。

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来源
《Journal of Volcanology and Geothermal Research2012V243-244NOCT,15》 |2018年第15期|232-252|共21页
作者
De Min Angelo; Callegaro Sara; Marzoli Andrea; Nardy Antonio J.; Chiaradia Massimo; Marques Leila S.; Gabbarrini Ilaria;
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作者单位

Univ Trieste, Dept Math & Geosci, Trieste, Italy;

Univ Oslo, Dept Geosci, Oslo, Norway;

Univ Padua, Dept Geosci, Padua, Italy;

Univ S Paulo State, Dept Petrol & Metallogenesis, Sao Paulo, Brazil;

Univ Geneva, Dept Earth Sci, Geneva, Switzerland;

Univ S Paulo, Dept Geophys, Sao Paulo, Brazil;

Univ Trieste, Dept Math & Geosci, Trieste, Italy;

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正文语种 eng
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关键词
Parana' flood basalts; Lava stratigraphy; Carbonatitic metasomatism; Geochemistry; Petrogenesis;

机译：巴拉那洪水玄武岩;熔岩地层;碳质交代作用;地球化学;成岩作用;

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机译：探讨了低于和高TI玄武岩的纤维化：中央Paraná流域四个熔岩序列的地层和地球化学

Insights into the petrogenesis of low- and high-Ti basalts: Stratigraphy and geochemistry of four lava sequences from the central Parana basin

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