The tectonomagmatic evolution of the Rhodope area, Bulgaria

保加利亚罗多彼地区的构造岩浆演化

• 批准号: 20928634
• 负责人: Professor Dr. Carsten Münker
• 金额: --
• 依托单位: Institut für Geologie und Mineralogie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/20928634?language=en
• 关键词: tectonomagmatic; evolution; Rhodope; area; Bulgaria

The Rhodope area in Southern Bulgaria constitutes a highly suited terrain to investigate processes active in a late- to post-collisional tectonic regime. As part of an interdisciplinary project (Bündelantrag) involving sedimentological and structural studies, the aim of the proposed project was to examine (1) HP ophiolites and (2) post-collisional high-K volcanic rocks. In the first months of the project we collected an extensive sample suite including HP eclogites and mafic to felsic volcanic rocks. The sampled lavas virtually cover the complete range of K enrichment found in such settings worldwide, including shoshonites and absarokites. In a first model, this compositional spread is interpreted to mirror variable source enrichment by subduction processes. Initial results on the geothermometry and Lu-Hf geochronology of the HP eclogites suggest two different periods of peak metamorphism (Cretaceous and Tertiary). In the second phase of the project, we intend to carry out additional trace element and isotope measurements on the volcanic rocks as well as to finalize Lu-Hf and Sm-Nd geochronology. The results will significantly contribute to the general understanding of the evolution of HP terrains and the origin of high-K magmatism.

保加利亚南部的罗德山地区构成了一个非常适合调查在后期到后期构造政权的过程的高度地形。作为涉及沉积学和结构研究的跨学科项目（Bündelantrag）的一部分，拟议项目的目的是检查（1）HP Ophilites和（2）（2）批评后的高K火山岩。在该项目的头几个月中，我们收集了包括HP Elogites和Mafic在内的广泛样品套件，并将其收集到长英质火山岩。采样的熔岩实际上涵盖了在全球此类环境中发现的k富集的完整范围，包括shoshonites和absarokites。在第一个模型中，该复合差异被解释为通过俯冲过程的镜像变量源富集。 HP Eclogites的地热测定法和LU-HF地质学的初步结果表明，峰值变质（白垩纪和第三纪）的两个不同时期。在项目的第二阶段中，我们打算在火山岩上进行其他痕量元素和同位素测量，并最终确定LU-HF和SM-ND地质学。结果将显着有助于对HP地形的演变和高K岩浆作用的一般理解。

项目成果

Tectonomagmatic Constraints on the Sources of Eastern Mediterranean K-rich Lavas

• DOI: 10.1093/petrology/egr055
• 发表时间: 2012
• 期刊: Journal of Petrology
• 影响因子: 3.9
• 作者: M. Kirchenbaur;C. Münker;S. Schuth;D. Garbe‐Schönberg;P. Marchev

The behaviour of the extended HFSE group (Nb, Ta, Zr, Hf, W, Mo) during the petrogenesis of mafic K-rich lavas: The Eastern Mediterranean case

富钾熔岩成岩过程中扩展 HFSE 族（Nb、Ta、Zr、Hf、W、Mo）的行为：东地中海案例

• DOI: 10.1016/j.gca.2015.05.030
• 发表时间: 2015
• 期刊: Geochimica et Cosmochimica Acta
• 影响因子: 5
• 作者: Kirchenbaur;Münker
• 通讯作者: Münker