DOI: 10.1007/s00531-013-0928-y
Scopus记录号: 2-s2.0-84893726302
论文题名: Relationships between seep-carbonates, mud volcanism and basin geometry in the Late Miocene of the northern Apennines of Italy: The Montardone mélange
作者: Conti S. ; Fontana D. ; Lucente C.C. ; Pini G.A.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期: 1 起始页码: 281
结束页码: 295
语种: 英语
英文关键词: Authigenic carbonates
; Mud volcanism
; Northern Apennines
; Olistostrome
; Seepage
Scopus关键词: basin analysis
; carbonate
; melange
; Miocene
; mud volcano
; olistostrome
; seepage
; volcanism
; Apennines
; Italy
; Bivalvia
; Lucinidae
; Vesicomyidae
英文摘要: The Montardone mélange (Mm) is a chaotic, block-in-matrix unit outcropping in the Montebaranzone syncline in the northern Apennines. The Mm occurs in the uppermost part of the Termina Fm, the Middle-Late Miocene interval of a succession deposited in a wedge-top slope basin (Epiligurian succession). The Mm is closely associated with bodies of authigenic carbonates, characterized by negative values of δ13C (from -18.22 to -39.05 ‰ PDB) and chemosynthetic benthic fauna (lucinid and vesicomyid bivalves). In this paper, we propose that the Mm is a mud volcano originated by the post-depositional reactivation and rising of a stratigraphically lower mud-rich mass transport body (Canossa-Val Tiepido sedimentary mélange or olistostrome) triggered by fluid overpressure. We base our conclusion on (1) the Mm pierces the entire Termina Fm and older Epiligurian units and represents the direct continuation of the underlying Canossa-Val Tiepido mélange; (2) the geometry and facies distribution of the Montebaranzone sandstone body, which are compatible with a confined basin controlled by the rising of the Mm; (3) the systematic presence of large-scale (lateral extension 300-400 m) seep-carbonates associated with the mélange, suggesting a persistent gas-enriched fluid vent from the ascending overpressured mud; (4) blocks and clasts sourced from the Mm, hosted by the authigenic carbonates, conveyed by ascending mud and gas-enriched fluids. The Mm represents one of the few fossil examples of reactivation of a basin-scale sedimentary mélange (olistostrome); a three-stage model showing mechanisms of Mm raising is proposed. © 2013 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893726302&doi=10.1007%2fs00531-013-0928-y&partnerID=40&md5=c89369f41846089e2490d30e5c10194d
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70372
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: Dipartimento di Scienze Della Terra, Università di Modena e Reggio Emilia, Largo S Eufemia 19, 41100 Modena, Italy; Regione Emilia-Romagna, Rimini, Italy; Dipartimento di Scienze Della Terra e Geologico-Ambientali, Università di Bologna, Bologna, Italy
Recommended Citation:
Conti S.,Fontana D.,Lucente C.C.,et al. Relationships between seep-carbonates, mud volcanism and basin geometry in the Late Miocene of the northern Apennines of Italy: The Montardone mélange[J]. International Journal of Earth Sciences,2014-01-01,103(1)