Temporal distribution of strain in the active Banda orogen: a reconciliation of rival hypotheses

Harris, Ron

doi:10.1016/0743-9547(91)90082-9

Cited by 118 publications

(100 citation statements)

References 44 publications

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“…The present findings therefore support the previous interpretations of the initial timing of collision outlined, for example, by Berry and McDougall (1986), Daley et al (1991), Harris (1991), and Audley-Charles (2004). Audley-Charles (2004) suggested that subduction of the continental margin in the region of an active Banda Trench took place from 12 Ma.…”

Section: Phases Of Deformationsupporting

confidence: 82%

Carbonate pelagites in the post-Gondwana succession (Cretaceous – Neogene) of East Timor

Haig

McCartain

2007

Australian Journal of Earth Sciences

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Section: Phases Of Deformationsupporting

confidence: 82%

Carbonate pelagites in the post-Gondwana succession (Cretaceous – Neogene) of East Timor

Haig

McCartain

2007

Australian Journal of Earth Sciences

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“…Apart from these vertical movements the basement acted as a rigid block since the early Paleogene. The absence of major deformation corresponds with Sumba's position just outside the main collision zone; this strongly contrasts with the heavily tectonized formations on Timor and on other outer arc islands further tot the east (see Harris, 1991). At least 3 Myr ago (e.g., Abbott and Chamalaun, 1981), but perhaps already 8 Myr ago (Berry and McDougall, 1986) the passive continental margin of Australia started to collide with the island arc.…”

Section: Tectonic Setting Of the Sumba Continental Fragmentmentioning

confidence: 96%

The tectonic emplacement of Sumba in the Sunda-Banda Arc: paleomagnetic and geochemical evidence from the early Miocene Jawila volcanics

Wensink

Bergen

1995

Tectonophysics

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The island of Sumba is a continental fragment in the fore-arc region near the transition between the Sunda Arc and Banda Arc in southeastern Indonesia. Paleomagnetic and geochemical evidence from the early Miocene volcanics of the Jawila Formation in western Sumba constrain the final drift stage and tectonic emplacement of the island. The lavas range from predominantly andesites to dacites, and display textural evidence for a weak metamorphism. Rock magnetic and mineral chemical data point to pseudo-singleto multi-domain (titanojmagnetite (Fe,,,~,Ti,,_,O,), with grain sizes up to 10 pm, as the main carrier of remanence. The Jawila Formation reveals a ChRM direction with declination = 4.6", inclination = -19.2", c+ = 9.9" and a paleolatitude of 9.9"S, which corroborates earlier results (Chamalaun and Sunata, 1982). Taking paleomagnetic evidence from other formations on the island into account, we conclude that the Sumba fragment has occupied approximately its present position since the Miocene. The talc-alkaline affinity and trace-element signatures of the lavas point to an origin in an arc environment. This occurrence of subduction-related volcanic activity in the early Miocene on Sumba implies that a volcanic arc existed south of the present-day East Sunda Arc, or that the island was located within the latter arc between Sumbawa and eastern Flores, and still had a minor southward drift to cover.

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“…The first, an accretionary phase, occurred during the transition between subduction and collision and resulted in frontal accretion of Cretaceous to Pliocene bathyal sediments in a thickening wedge (Hamilton, 1979). Continued collision of the continental slope resulted in shortening and uplift of the wedge as alpine-thrust sheets (Harris, 1991). Following cessation of subduction, isostatic rebound along steep faults resulted in further uplift of the Timor micro-continent (Chamalaun & Grady, 1978).…”

Section: Timormentioning

confidence: 99%

“…The island of Timor is the uplifted accretionary complex resulting from the active collision of the Banda volcanic arc with the Australian continental margin at the end of the Miocene (Harris, 1991). Three major phases of orogenesis have been identified (Hutchinson, 2005).…”

Section: Timormentioning

confidence: 99%

Differential preservation of vertebrates in Southeast Asian caves

Louys¹,

Kealy²,

O’Connor³

et al. 2017

IJS

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Abstract:Caves have been an important source of vertebrate fossils for much of Southeast Asia, particularly for the Quaternary. Despite this importance, the mechanisms by which vertebrate remains accumulate and preserve in Southeast Asian caves has never been systematically reviewed or examined. Here, we present the results of three years of cave surveys in Indonesia and Timor-Leste, describing cave systems and their attendant vertebrate accumulations in diverse geological, biogeographical, and environmental settings. While each cave system is unique, we find that the accumulation and preservation of vertebrate remains are highly dependent on local geology and environment. These factors notwithstanding, we find the dominant factor responsible for faunal deposition is the presence or absence of biological accumulating agents, a factor directly dictated by biogeographical history. In small, isolated, volcanic islands, the only significant accumulation occurs in archaeological settings, thereby limiting our understanding of the palaeontology of those islands prior to human arrival. In karstic landscapes on both oceanic and continental islands, our understanding of the longterm preservation of vertebrates is still in its infancy. The formation processes of vertebratebearing breccias, their taphonomic histories, and the criteria used to determine whether these represent syngenetic or multiple deposits remain critically understudied. The latter in particular has important implications for arguments on how breccia deposits from the region should be analysed and interpreted when reconstructing palaeoenvironments.

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Temporal distribution of strain in the active Banda orogen: a reconciliation of rival hypotheses

Cited by 118 publications

References 44 publications

Carbonate pelagites in the post-Gondwana succession (Cretaceous – Neogene) of East Timor

Carbonate pelagites in the post-Gondwana succession (Cretaceous – Neogene) of East Timor

The tectonic emplacement of Sumba in the Sunda-Banda Arc: paleomagnetic and geochemical evidence from the early Miocene Jawila volcanics

Differential preservation of vertebrates in Southeast Asian caves

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