Geochronology of early human settlements in Java: What is at stake?

Falguères, Christophe; Sémah, François; Saleki, Hassane; Hameau, Sébastien; Tu, Hua; Féraud, Gilbert; Simanjuntak, Harry Truman; Widianto, Harry

doi:10.1016/j.quaint.2015.10.076

Cited by 19 publications

(13 citation statements)

References 32 publications

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“…While they have been found to differ from the hammerstones with fracture angles, also present in the assemblage [52], they reflect an organized operative scheme that is somewhat comparable to the management of orthogonal cores. On the BL tools, traces [13,16,31,34,36,37,38,41,42,46,51,104,105,107,118,119,120,125,136,139,141,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,…”

Section: Discussionmentioning

confidence: 99%

Subspheroids in the lithic assemblage of Barranco León (Spain): Recognizing the late Oldowan in Europe

et al. 2020

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The lithic assemblage of Barranco León (BL), attributed to the Oldowan techno-complex, contributes valuable information to reconstruct behavioral patterning of the first hominins to disperse into Western Europe. This archaic stone tool assemblage comprises two, very different groups of tools, made from distinct raw materials. On the one hand, a small-sized toolkit knapped from Jurassic flint, comprising intensively exploited cores and small-sized flakes and fragments and, on the other hand, a large-sized limestone toolkit that is mainly linked to percussive activities. In recent years, the limestone macro-tools have been the center of particular attention, leading to a re-evaluation of their role in the assemblage. Main results bring to light strict hominin selective processes, mainly concerning the quality of the limestone and the morphology of the cobbles, in relation to their use-patterning. In addition to the variety of traces of percussion identified on the limestone tools, recurrences have recently been documented in their positioning and in the morphology of the active surfaces. Coupled with experimental work, this data has contributed to formulating hypothesis about the range of uses for these tools, beyond stone knapping and butchery, for activities such as: wood-working or tendon and meat tenderizing. The abundance of hammerstones, as well as the presence of heavy-duty scrapers, are special features recognized for the limestone component of the Barranco León assemblage. This paper presents, for the first time, another characteristic of the assemblage: the presence of polyhedral and, especially, subspheroid morphologies, virtually unknown in the European context for this timeframe. We present an analysis of these tools, combining qualitative evaluation of the raw materials, diacritical study, 3D geometric morphometric analysis of facet angles and an evaluation of the type and position of percussive traces; opening up the discussion of the late Oldowan beyond the African context.

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Section: Discussionmentioning

confidence: 99%

Subspheroids in the lithic assemblage of Barranco León (Spain): Recognizing the late Oldowan in Europe

et al. 2020

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“…Sites with relatively well-dated stone tool assemblages include Ngebung (Java), ca. 800 ka (30), and Mata Menge and Wolo Sege (Flores), 880 ka and 1.0 Ma, respectively (18,31). Lithics at Talepu (Sulawesi) have an estimated age of ca.…”

Section: Archaeologymentioning

confidence: 99%

When did Homo sapiens first reach Southeast Asia and Sahul?

O’Connell

Allen

Williams

et al. 2018

Proc. Natl. Acad. Sci. U.S.A.

215

160

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Anatomically modern humans (, AMH) began spreading across Eurasia from Africa and adjacent Southwest Asia about 50,000-55,000 years ago ( 50-55 ka). Some have argued that human genetic, fossil, and archaeological data indicate one or more prior dispersals, possibly as early as 120 ka. A recently reported age estimate of 65 ka for Madjedbebe, an archaeological site in northern Sahul (Pleistocene Australia-New Guinea), if correct, offers what might be the strongest support yet presented for a pre-55-ka African AMH exodus. We review evidence for AMH arrival on an arc spanning South China through Sahul and then evaluate data from Madjedbebe. We find that an age estimate of >50 ka for this site is unlikely to be valid. While AMH may have moved far beyond Africa well before 50-55 ka, data from the region of interest offered in support of this idea are not compelling.

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“…the sample is used as a dosimeter for dating, having recorded the total radiation dose received since the event of interest, namely the time of deposition of quartz grains within the sediment, through the quantification of electrons trapped in mineral defects in relation to the irradiation (Grün, 1994;Ikeya, 1993). Since the end of 1960s, this method has been used to date materials such as tooth enamel (Falguères et al, 2016), corals, molluscs and continental carbonates (Bahain et al, 1995(Bahain et al, , 2007, as well as quartz grains from ash and fluvial deposits, and some flints (Ikeya, 1993;Falguères and Bahain, 2002). The dating of quartz by ESR was proposed in the early 1970s (McMorris, 1971), based on the presence of diverse paramagnetic ESR centres in its structure, with the first sedimentary quartz dating undertaken by Yokoyama et al (1985).…”

Section: Electron Spin Resonance Datingmentioning

confidence: 99%

Electron spin resonance dating of the culminant allostratigraphic unit of the Mondego and Lower Tejo Cenozoic basins (W Iberia), which predates fluvial incision into the basin-fill sediments

Gouveia

Cunha

Falguères

et al. 2020

Global and Planetary Change

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The Cenozoic basins of western Iberia have a culminant allostratigraphic unit (designated UBS13), which records the beginning of Atlantic drainage and predates the fluvial incision that led to the development of the present drainage networks. However, the available numerical dating is quite limited and mainly restricted to the lowerlevel terrace deposits. Therefore, this study uses for the first time the electron spin resonance (ESR) method to date this culminant unit in the Mondego and Lower Tejo Cenozoic basins of Portugal. The depositional age of this unit is supposed to lie between~3.7 Ma (basal deposits) and~1.8 Ma (uppermost deposits). The Al-centre provided reliable ESR data, but the dates obtained by using the TieLi centre clearly underestimate the burial ages. With reference to the existing independent dating of the Vale Farpado site (3.7-3.6 Ma) at the lowermost basal level of the UBS13 deposits, the ESR (Al-centre) ages of 3.0 to 2.3 Ma obtained for the UBS13 basal and middle deposits give reliable estimates of the burial age. The ESR ages (Al-centre) obtained for the UBS13 uppermost deposits indicate a probable age of~1.8 Ma. Thus, these results are of international significance, in that they constitutes the first numerical ages obtained for the uppermost levels of the Cenozoic basin-fills of western Iberia, which predate the fluvial incision that took place in response to lower Quaternary base levels.

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Geochronology of early human settlements in Java: What is at stake?

Cited by 19 publications

References 32 publications

Subspheroids in the lithic assemblage of Barranco León (Spain): Recognizing the late Oldowan in Europe

Subspheroids in the lithic assemblage of Barranco León (Spain): Recognizing the late Oldowan in Europe

When did Homo sapiens first reach Southeast Asia and Sahul?

Electron spin resonance dating of the culminant allostratigraphic unit of the Mondego and Lower Tejo Cenozoic basins (W Iberia), which predates fluvial incision into the basin-fill sediments

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