Paleogeography and volcanic morphology reconstruction of a buried monogenetic volcanic field (part 2)

Bischoff, Alan; Nicol, Andrew; Barrier, Andrea; Wang, Han-Fei

doi:10.1007/s00445-019-1317-6

Cited by 20 publications

(27 citation statements)

References 73 publications

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“…The products of this volcanic activity are observed over an area of ca 1,520 km 2 , located 40 km SW and offshore of Banks Peninsula (Figure 1). Eruptions in the MVS were short-lived and entirely submarine (500 to 1500 m in depth), controlled by a plumbing system that fed magma to disperse eruptive centres, which is common characteristic of monogenetic volcanic fields [38]. The magmatic products of MVS melts are primarily basaltic-alkaline in composition, and mainly produced the deep-water equivalents of tuff cones and maar-diatreme volcanoes [35,38] (Figure 3).…”

Section: Geological Backgroundmentioning

confidence: 99%

“…Eruptions in the MVS were short-lived and entirely submarine (500 to 1500 m in depth), controlled by a plumbing system that fed magma to disperse eruptive centres, which is common characteristic of monogenetic volcanic fields [38]. The magmatic products of MVS melts are primarily basaltic-alkaline in composition, and mainly produced the deep-water equivalents of tuff cones and maar-diatreme volcanoes [35,38] (Figure 3). After volcanism ceased, volcanoes located in a bathyal setting were buried and well preserved in the Canterbury Basin sedimentary strata, while higher volcanoes (> 200 m) located in a neritic setting were emergent at the paleo sea-surface and thus have had their tops flattened by erosional processes [38].…”

Section: Geological Backgroundmentioning

confidence: 99%

“…The magmatic products of MVS melts are primarily basaltic-alkaline in composition, and mainly produced the deep-water equivalents of tuff cones and maar-diatreme volcanoes [35,38] (Figure 3). After volcanism ceased, volcanoes located in a bathyal setting were buried and well preserved in the Canterbury Basin sedimentary strata, while higher volcanoes (> 200 m) located in a neritic setting were emergent at the paleo sea-surface and thus have had their tops flattened by erosional processes [38]. These particular eruptive styles and differential erosion produced a variety of architectural elements related with the evolution of the MVS, which is the topic of the present paper.…”

Section: Geological Backgroundmentioning

confidence: 99%

“…In the right side we show the water-depth variation from Cretaceous to Pleistocene at the location of the Resolution-1 borehole. [35,38].…”

Section: Introductionmentioning

confidence: 99%

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Stratigraphy of Architectural Elements of a Buried Monogenetic Volcanic System

Bischoff¹,

Nicol²,

Cole³

et al. 2019

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Large volumes of magma emplaced and deposited within sedimentary basins can have an impact on the architecture and geological evolution of these basins. Over the last decade, continuous improvement in techniques such as seismic volcano-stratigraphy and 3D visualisation of igneous bodies has helped increase knowledge about the architecture of volcanic systems buried in sedimentary basins. Here, we present the complete architecture of the Maahunui Volcanic System (MVS), a middle Miocene monogenetic volcanic field now buried in the offshore Canterbury Basin, South Island of New Zealand. We show the location, geometry, size, and stratigraphic relationships between 25 main intrusive, extrusive and sedimentary architectural elements, in a comprehensive volcano-stratigraphic framework that explains the evolution of the MVS from emplacement to complete burial in the host sedimentary basin. The plumbing system of the MVS comprises saucer-shaped sills, dikes and sill swarms, minor stocks and laccoliths, and pre-eruptive strata deformed by intrusions. The eruptive and associated sedimentary architectural elements define the morphology of volcanoes in the MVS, which comprise deep-water equivalents of crater and cone-type volcanoes. After volcanism ceased, the process of degradation and burial of volcanic edifices formed sedimentary architectural elements such as inter-cone plains, epiclastic plumes, and canyons. Understanding the relationships between these diverse architectural elements allows us to reconstruct the complete architecture of the MVS, including its shallow (<3 km) plumbing system, the morphology of the volcanoes, and their impact in the host sedimentary basin during their burial. Insights from the architecture of the MVS can be used to explore for geoenergy resources such as oil, gas and geothermal energy in buried and active monogenetic volcanic systems elsewhere.

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Section: Geological Backgroundmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

“…In the right side we show the water-depth variation from Cretaceous to Pleistocene at the location of the Resolution-1 borehole. [35,38].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stratigraphy of Architectural Elements of a Buried Monogenetic Volcanic System

Bischoff¹,

Nicol²,

Cole³

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Transdisciplinary approach within volcanology was always a key element of volcano science as volcanology addresses key questions over volcanic hazards, risk and resilience naturally moving along the interface of social science, humanities, natural science and non-academic (e.g. indigenous) knowledge [18][19][20][21][22][23][24][25]. Especially in recent years more and more researches were conducted on subjects to help to understand the interface between western science and traditional knowledge [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%