Age constraints and characteristics of subaqueous volcanic construction, the Archean Hunter Mine Group, Abitibi greenstone belt

Mueller, W.U.; Mortensen, James K.

doi:10.1016/s0301-9268(02)00008-6

Cited by 46 publications

(20 citation statements)

References 71 publications

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“…For example, the sudden influx of voluminous volcanic and volcaniclastic material into a restricted basin can create resistant barriers and may have pronounced effect on the sediment dispersal patterns and depositional sequences (Kuenzi et al, 1979;Mueller et al, 1994). Although volcanic, pyroclastic, and sedimentological aspects of terrestrial depositional systems have been discussed by a number of authors (Smith, 1987(Smith, , 1988Smith and Swanson, 1987;Mueller et al, 1994;Altermann, 1996;Mueller and Corcoran, 2001;Mueller and Mortensen, 2002), the influence of allocyclic controls such as tectonism and volcanism on basin formation, sediment dispersal patterns and facies architecture have not been adequately addressed (cf. Sato and Amano, 1991;Corcoran et al, 1999;Kataoka and Nakajo, 2002).…”

Section: Introductionmentioning

confidence: 99%

Sedimentation history of the Palaeoproterozoic Dhanjori Formation, Singhbhum, eastern India

Mazumder

Sarkar

2004

Precambrian Research

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The Palaeoproterozoic Dhanjori Formation, eastern India is a terrestrial (dominantly fluvial) volcano-sedimentary succession. Basal conglomerate, coarse-grained sandstone, and shale rests directly on the granite basement and represents the distal fringe of an alluvial fan complex. Sieve, sheet flood, mass flow and alluvial channel and overbank deposits comprise the fan segment. The rest of the formation is entirely constituted by fining upward fluvial cycles. An event of basin tilting and volcanic eruption intervened and resulted a second phase of Dhanjori sedimentation, although the general fluvial depositional framework remained unaltered. The two members of the Dhanjori Formation display different paleocurrent trends related to fluvial response to basin tilting. In the lower member spatial variability in paleocurrent directions occurs as a consequence of fan development. Unlike the first phase, the second phase of fluvial deposition incorporates profuse volcanics and accompanying volcaniclastic deposits. These volcanic and volcaniclastic rocks might have locally blocked the river courses resulting in short-lived lacustrine deposition. Composition of the volcanics varies upward from ultramafic to mafic. The Dhanjori volcanism took place in an intracontinental rift setting as is evident from the interbedded terrestrial deposits. Interbedded volcanic and volcaniclastic rocks in different stratigraphic levels suggest episodic volcanic eruption. A semiarid paleoclimate is proposed and is consistent with development of an alluvial fan comprised of coarse clastic deposits.

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Section: Introductionmentioning

confidence: 99%

Sedimentation history of the Palaeoproterozoic Dhanjori Formation, Singhbhum, eastern India

Mazumder

Sarkar

2004

Precambrian Research

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“…The Dales Gorge Member was subjected to metamorphic temperatures between 60 and 160 °C (Gole 1980). The oldest BIF sample in this study is from the 2728 Ma chert-jasper-magnetite facies embedded in the uppermost section of Hunter Mine Group in Abitibi, Canada, which experienced greenschist grade metamorphism (Powell et al 1995;Mueller and Mortensen 2002).…”

Section: Late Archean To Paleoproterozoic Banded Iron Formations (272mentioning

confidence: 99%

Flower-like apatite recording microbial processes through deep geological time and its implication to the search for mineral records of life on Mars

Sun

Chan

2014

American Mineralogist

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The biological cycling of phosphorus on Earth could be as early as the origin of life in early Archean. However, because of the low abundance and fine particle size, phosphate related to microbial ecophysiological activities in early sedimentary rocks, especially those deposited before the Great Oxidation Event (GOE, ca. 2.45-2.32 Ma), is still poorly addressed. It is not until recently that certain petrographic and mineralogical features of apatite in the early Precambrian sedimentary rocks were found related to microbial activities. In this study, we report high-resolution electron microscopic investigations on apatite from the Neoarchean to early Paleoproterozoic banded iron formations (BIFs), Mesoproterozoic to Lower Cambrian black shale and phosphorites, and Pliocene sediments. Apatite in BIFs occurs as 4-8 mm radial flowers with "petals" made of apatite rods. Their mineralogical and petrologic features are highly similar to those in the younger sedimentary rocks in which biomass have been confirmed to play an important role in the mineralization of phosphate. We suggest that these sedimentary rocks or sediments have experienced similar phosphogenetic processes mediated by biomass that led to the mineralization of phosphorus. The formation and preservation of phosphate (apatite) with conspicuous recognizable features in association with biological activities from Late Archean to Pliocene implies its universal significance in recording microbial processes through deep geological evolution. With mild dynamic processes, the martian (sub)surface has better preservation conditions than Earth, and the micro-structure of phosphate formed in environments mediated by microorganisms could be recognized by high-resolution observations on the surface of Mars or returned samples, if microbial life ever developed on Mars.

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“…(Mueller et al 1996). Le Groupe de Blake River est maintenant interprété comme étant un complexe de mégacaldeiras imbriquées (Pearson et Daigneault, 2009 Destor-Porcupine-Manneville est la ligne de démarcation entre la zone nord et sud (Mueller et Mortensen, 2002;Daigneault et al 2004). …”

Section: Faciès Des Coulées De Lave Sous-marinesunclassified

Distribution et caractérisation des faciès volcaniques du secteur de Monsabrais, Abitibi, Québec /

Castillo-Guimond

2012

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Age constraints and characteristics of subaqueous volcanic construction, the Archean Hunter Mine Group, Abitibi greenstone belt

Cited by 46 publications

References 71 publications

Sedimentation history of the Palaeoproterozoic Dhanjori Formation, Singhbhum, eastern India

Sedimentation history of the Palaeoproterozoic Dhanjori Formation, Singhbhum, eastern India

Flower-like apatite recording microbial processes through deep geological time and its implication to the search for mineral records of life on Mars

Distribution et caractérisation des faciès volcaniques du secteur de Monsabrais, Abitibi, Québec /

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