The stratigraphy of Western Irian Jaya

Pieters, Peter; Pigram, C. J.; Trail, Dustin; Dow, D. B.; Ratman, N.; Sukamto, R.

doi:10.29118/ipa.2443.229.261

Cited by 44 publications

(76 citation statements)

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“…The computed poles of rotation for the Philippine Sea Plate indicate no significant convergence between the Philippine Sea Plate and Australia after 25 Ma, suggesting the existence of a strike-slip boundary (Hall et al, 1995a). The lack of convergence is also consistent with the absence of major Neogene volcanic activity in northern Irian Jaya (Pieters et al, 1983;Dow and Sukamto, 1984). The Philippine Sea Plate rotation pole probably shifted to its present-day position close to Japan during the Pliocene.…”

Section: Age and Initiation Of The Sorong Fault Systemsupporting

confidence: 53%

“…A collision between the Australian margin and an island arc has been implied or explicitly suggested by many previous authors (e.g. Dew, 1977;Jaques and Robinson, 1977;Pieters et al, 1983;Pigram and Davies, 1987) Fig. 13.…”

Section: Regional Implicationsmentioning

confidence: 99%

“…However, there are many similarities between the stratigraphy of the Sorong Fault Zone and of the oceanic province (Dew, 1977;Pieters et al, 1983;Dew and Sukamto, 1984) in the New Guinea Orogen (Fig. 13).…”

Section: Regional Implicationsmentioning

confidence: 99%

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Evolution of the boundary between the Philippine Sea Plate and Australia: palaeomagnetic evidence from eastern Indonesia

Ali¹,

Hall

1995

Tectonophysics

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Section: Age and Initiation Of The Sorong Fault Systemsupporting

confidence: 53%

Section: Regional Implicationsmentioning

confidence: 99%

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Evolution of the boundary between the Philippine Sea Plate and Australia: palaeomagnetic evidence from eastern Indonesia

Ali¹,

Hall

1995

Tectonophysics

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“…The Paleocene interval, as a focus of this study, is part of the WaripiDaram Formation that was deposited conformably above the Upper Kembelangan Formation. [7] interpreted this rock unit age as Paleocene due to contains no age diagnostics fossils but lies with gradational contacts between the Eocene Yawee Formation and Late Cretaceous Ekmai sandstone, but may partly be a lateral equivalent of the Ekmai sandstone. This formation consists of sandstone, claystone and shale which collectively indicate deep marine sedimentary deposit.…”

Section: Geological Settingmentioning

confidence: 99%

“…This formation consists of sandstone, claystone and shale which collectively indicate deep marine sedimentary deposit. This rock unit crops out in the western mountains of the Central Range from where it extends westwards into the southern edge of the Birds Neck [7].…”

Section: Geological Settingmentioning

confidence: 99%

Ichnofossils study of paleocene sediment source rock cores from Bintuni basin, West Papua, Eastern Indonesia

Aswan

Rudyawan

2018

IOP Conf. Ser.: Earth Environ. Sci.

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Growth of the Maritime Continent and its possible contribution to recurring Ice Ages

Molnár

Cronin

2015

Paleoceanography

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The areal extent of the Maritime Continent (the islands of Indonesia and surrounding region) has grown larger by~60% since 5 Ma. We argue that this growth might have altered global climate in two ways that would have contributed to making recurring Ice Ages possible. First, because rainfall over the islands of the Maritime Continent not only is heavier than that over the adjacent ocean but also correlates with the strength of the Walker Circulation, the growth of the Maritime Continent since 5 Ma may have contributed to the cooling of the eastern tropical Pacific since that time. Scaling relationships between the strength of the Walker Circulation and rainfall over the islands of the Maritime Continent and between sea surface temperature (SST) of the eastern tropical Pacific and the strength of easterly wind stress suggest that the increase in areal extent of islands would lead to a drop in that SST of 0.75°C. Although only a fraction of the 3-4°C decrease in SSTs between the eastern and western tropical Pacific, the growth of the Maritime Continent may have strengthened the Walker Circulation, increased the east-west temperature gradient across the Pacific and thereby enabled ice sheets to wax and wane over Canada since 3 Ma. Second, because the weathering of basaltic rock under warm, moist conditions extracts CO 2 from the atmosphere more rapidly than weathering of other rock or of basalt under cooler or drier conditions, the increase in weathering due to increasing area of basalt in the Maritime Continent may have drawn down enough CO 2 from the atmosphere to affect global temperatures. Simple calculations suggest that increased weathering of basalt might have lowered global temperatures by 0.25°C, possibly important for the overall cooling.

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The stratigraphy of Western Irian Jaya

Cited by 44 publications

References 0 publications

Evolution of the boundary between the Philippine Sea Plate and Australia: palaeomagnetic evidence from eastern Indonesia

Evolution of the boundary between the Philippine Sea Plate and Australia: palaeomagnetic evidence from eastern Indonesia

Ichnofossils study of paleocene sediment source rock cores from Bintuni basin, West Papua, Eastern Indonesia

Growth of the Maritime Continent and its possible contribution to recurring Ice Ages

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