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Early Pleistocene 40 Ar/ 39 Ar ages for Bapang Formation hominins, Central Jawa, Indonesia

Larick, Roy, Ciochon, Russell L., Zaim, Yahdi, Sudijono, Suminto, Rizal, Yan, Aziz, Fachroel, Reagan, Mark, Heizler, Matthew·2001·Proceedings of the National Academy of Sciences
DOI 10.1073/pnas.081077298
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Abstract

The Sangiran dome is the primary stratigraphic window for the Plio-Pleistocene deposits of the Solo basin of Central Jawa. The dome has yielded nearly 80 Homo erectus fossils, around 50 of which have known findspots. With a hornblende 40 Ar/ 39 Ar plateau age of 1.66 ± 0.04 mega-annum (Ma) reportedly associated with two fossils [Swisher, C.C., III, Curtis, G. H., Jacob, T., Getty, A. G., Suprijo, A. & Widiasmoro (1994) Science 263, 1118–1121), the dome offers evidence that early Homo dispersed to East Asia during the earliest Pleistocene. Unfortunately, the hornblende pumice was sampled at Jokotingkir Hill, a central locality with complex lithostratigraphic deformation and dubious specimen provenance. To address the antiquity of Sangiran H. erectus more systematically, we investigate the sedimentary framework and hornblende 40 Ar/ 39 Ar age for volcanic deposits in the southeast quadrant of the dome. In this sector, Bapang (Kabuh) sediments have their largest exposure, least deformation, and most complete tephrostratigraphy. At five locations, we identify a sequence of sedimentary cycles in which H. erectus fossils are associated with epiclastic pumice. From sampled pumice, eight hornblende separates produced 40 Ar/ 39 Ar plateau ages ranging from 1.51 ± 0.08 Ma at the Bapang/Sangiran Formation contact, to 1.02 ± 0.06 Ma, at a point above the hominin-bearing sequence. The chronological sequence of 40 Ar/ 39 Ar ages follows stratigraphic order across the southeast quadrant. An intermediate level yielding four nearly complete crania has an age of about 1.25 Ma.

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Research works printed but not linked: 29

  1. M Itihara, Sudijono, D Kadar, T Shibasaki, H Kumai, S Yoshikawa, F Aziz, T Soeradi, Wikarno, A P Kadar, et al. Quaternary Geology of the Hominid Fossil Bearing Formations in Java, eds N Watanabe, D Kadar (Geological Research and Development Centre Special Publication 4, Bandung, Indonesia), pp. 11–43 (1985).
  2. A M Sémah Cour Forschungsinst Senckenberg 69, 237–243 (1984).
  3. J de Vos, P Y Sondaar, G D van den Bergh, F Aziz Cour Forschungsinst Senckenberg 171, 129–140 (1994).
  4. 10.1006/jhev.1999.0408 · DOI
  5. S Sartono, D E Tyler, G S Krantz Palaeo-Anthropology: Evolution and Ecology of Homo erectus, eds J R F Bower, S Sartono (Pithecanthropus Centennial Foundation, Leiden, The Netherlands), pp. 207–210 (1995).
  6. H Widianto, D Grimaud-Hervé C R Acad Sci 330, 883–888 (2000).
  7. D Grimaud-Hervé, H Widianto, T H Jacob Acta Anthropol Sinica 19,Suppl., 64–68 (2000).
  8. Quaternary Geology of the Northern Foot Area of Mount Lawu and Along the Middle Course of the Solo River, Central and East Java (Geological Research and Development Centre and Japan International Cooperation Agency, Bandung, Indonesia), pp. 1–83 (1991).
  9. 10.1130/0091-7613(1992)020<0531:AADOQF>2.3.CO;2 · DOI
  10. P E Damon, A W Laughlin, J K Percious Radioactive Dating and Methods of Low-Level Counting (International Atomic Energy Agency, Vienna), pp. 463–481 (1967).
  11. 10.1130/0091-7613(1998)026<0427:IAIAPA>2.3.CO;2 · DOI
  12. 10.1029/JB095iB06p08453 · DOI
  13. 10.1080/00206819709465336 · DOI
  14. C C Swisher J Hum Evol 32, A23 (1997).
  15. C C Swisher International Symposium on Palaeoanthropology (Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing), pp. 78 (1999).
  16. 10.1098/rstb.1981.0010 · DOI
  17. J D Obradovich, C W Naeser US Geol Surv Prof Pap 1275, 285–286 (1982).
  18. 10.1126/science.8108729 · DOI · Paper page
  19. 10.1006/jhev.1999.0394 · DOI
  20. Y Zaim, R Larick, R L Ciochon, Suminto, Y Rizal, Sujatmiko Buletin Geologi 31, 67–84 (1999).
  21. S Sartono L'Anthropologie (Paris) 18, 121–131 (1980).
  22. 10.1006/jasc.1999.0482 · DOI · Paper page
  23. 10.1023/A:1005525623327 · DOI
  24. 10.1126/science.287.5458.1622 · DOI
  25. 10.1126/science.289.5479.507a · DOI
  26. 10.1016/0047-2484(92)90092-N · DOI
  27. H Widianto, B Toha, T Simanjuntak, M Hidayat Laporan Penelitian Situs Sangiran: Proses Sedimentasi, Posisi Stratigrafi dan Kronologi Artefak Pada Endapan Purba Seri Kabuh dan Seri Notopuro (Berita Penelitian Arkeologi No. 1, Balai Arkeologi Yogyakarta, Pusat Penelitian Arkeologi Nasional, Yogyakarta, Indonesia), pp. 1–136 (1997).
  28. Widiasmoro Penyelidikan Pendahuluan Proses Sedimentasi: Fossil Pithecanthropus Sp Didaerah Sangiran, Jawa Tengah (Bagian Teknik Geologi, Fakultas Teknik, Universitas Gadjah Mada, Yogyakarta, Indonesia), pp. 1–58 (1977).
  29. Widianto Dissertation (Muséum National d'Histoire Naturelle, Institut de Paléontologie Humaine, Paris, 1993).

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Metadata

Authors
Larick, R., Ciochon, R. L., Zaim, Y., Sudijono, Suminto, Rizal, Y., Aziz, F., Reagan, M., & Heizler, M.
Affiliations
URS Corporation, 100 California Street, Suite 500, San Francisco, CA 94111-4529; Department of Anthropology, University of Iowa, Iowa City, IA 52242-1322; Department of Geology, Institute of Technology Bandung, Jalan Ganesha no. 10, Bandung 40132, Indonesia; Quaternary Geology Laboratory, Geological Research and Development Centre, Jalan Dr. Junjunan no. 236, Bandung 40174, Indonesia; Department of Geoscience, University of Iowa, Iowa City, IA 52242-1379; and New Mexico Bureau of Mines and...
Venue
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences
Published
2001-04-17
Volume
98
Issue
9
Pages
4866-4871
ISSN
  • 0027-8424
  • 1091-6490
DOI
10.1073/pnas.081077298
Cited by
192
References
0
Language
en

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