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DOI	10.5027/andgeoV51n1-3657
	Tectono-stratigraphic and sedimentological analysis of the Early to Middle Devonian Floresta Formation: Insights from the Floresta Massif, Northern Andes, Colombia
	Amorocho-Parra, Ricardo; Rodriguez-Patino, Cristhiam Calixto; Rios-Reyes, Carlos Alberto; Ramirez-Arias, Juan Carlos; Castellanos-Alarcon, oscar Mauricio
发表日期	2024
ISSN	0718-7106
起始页码	51
结束页码	1
卷号	51 期号:1
英文摘要	A comprehensive tectono-stratigraphic and sedimentological investigation of Early to Middle Devonian rocks was conducted in the southern Floresta Massif and adjacent regions in the Northern Andes of Colombia. A substantially reduced thickness of the Floresta Formation compared to prior studies is suggested here, attributable to pronounced stratal deformation and the prevalence of recumbent folds throughout the area. The deformation in the Floresta Formation manifests as atypical recumbent folds, diverging from the structural behavior observed in the underlying and overlying strata of the El Tibet and Cuche formations respectively, which exhibit minimal deformation. Our findings also reveal that the Floresta Formation accumulated under shallow-water platform conditions, subject to eustatic sea-level fluctuations. This resulted in distinct episodes of carbonate and siliciclastic deposition, with terrigenous sediments sourced from continental origins, potentially encompassing a combination of cratonic areas and uplifted blocks. The identification of a plausible stage of carbonate silicification signifies a post-diagenetic transformation. The sedimentary rocks of the Floresta Formation reached the upper epizone conditions, in proximity to the transition between the epizone and the upper anchizone, which suggests a maximum depth and temperature of similar to 5-7 km and similar to 300 degrees C, respectively. This contribution provides new insights into the geological history of the region, emphasizing the importance of scrutinizing Early to Middle Devonian rocks within the broader geological context of the Northern Andes.
英文关键词	Floresta Massif; Diagenesis; Stratigraphy; Paleofauna; Deformation; Recumbent folds
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:001221064200001
来源期刊	ANDEAN GEOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298965
作者单位	Universidad Industrial de Santander; Universidad Industrial de Santander; Universidade de Sao Paulo
推荐引用方式 GB/T 7714	Amorocho-Parra, Ricardo,Rodriguez-Patino, Cristhiam Calixto,Rios-Reyes, Carlos Alberto,et al. Tectono-stratigraphic and sedimentological analysis of the Early to Middle Devonian Floresta Formation: Insights from the Floresta Massif, Northern Andes, Colombia[J],2024,51(1).
APA	Amorocho-Parra, Ricardo,Rodriguez-Patino, Cristhiam Calixto,Rios-Reyes, Carlos Alberto,Ramirez-Arias, Juan Carlos,&Castellanos-Alarcon, oscar Mauricio.(2024).Tectono-stratigraphic and sedimentological analysis of the Early to Middle Devonian Floresta Formation: Insights from the Floresta Massif, Northern Andes, Colombia.ANDEAN GEOLOGY,51(1).
MLA	Amorocho-Parra, Ricardo,et al."Tectono-stratigraphic and sedimentological analysis of the Early to Middle Devonian Floresta Formation: Insights from the Floresta Massif, Northern Andes, Colombia".ANDEAN GEOLOGY 51.1(2024).