ORCID Profile
0000-0001-7647-0410
Current Organisations
Badan Riset dan Inovasi Nasional Republik Indonesia
,
University of Wollongong
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Publisher: Springer Science and Business Media LLC
Date: 19-07-2022
DOI: 10.1007/S12520-022-01620-4
Abstract: Serrated stone points have been documented in a variety of archaeological settings worldwide. In Indonesia, serrated points known as Maros point began to appear during the mid-Holocene as part of the Toalean techno-complex in southern South Sulawesi. Researchers have speculated functional and cultural reason behind the emergence of these distinctive artefact as projectile points, an assumption that has yet to be verified by archaeological data. In particular, the edge serration has been suggested to allow for deeper penetration and/or act as barbs to prevent the easy withdrawal of the points from the target. In this study, we experimentally test these functional hypotheses regarding the effect of edge serration on stone arrowheads resembling Maros points when fired using different bow draw weights. We also investigate variation in breakage and impact fracture pattern between serrated and non-serrated points. Our result show that, compared to the non-serrated points, the serrated arrows not only deliver deeper penetrations, but also require less force to withdraw from the ballistic gel target. However, these relationships are complicated by the inclusion of skin and bone in the ballistic target. The findings demonstrate that the effect of serrated stone points on projectile performance depends on factors such as the projectile delivery system and prey type. Moreover, under identical firing settings, the serrated points develop more variable macrofracture patterns than the non-serrated points, likely owing the irregular edge morphologies. Taking these results together, we discuss the implications of our experimental study on the appearance of Maros points and the Toalean techno-complex in South Sulawesi during the mid-Holocene.
Publisher: National Research and Innovation Agency
Date: 30-11-2018
DOI: 10.24164/PW.V7I2.272
Abstract: Fossil bones and teeth usually are very common archeological findings. At many sites these remains, such as bones bearing cut marks, may provide unequivocal evidence for human occupation. Hence bones and teeth provide the ideal targets for directly dating of archeological levels. Combined ESR/U-series dating of fossil teeth has been increasingly used in geochronological research over the past three decades. Results prove that it can be potentially applied to the sites in different geological contexts (fluvial/lacustrine or karstic environments) over a timescale of 304-206 years. But to perform this dating method, there’s a step that we need to prepare and do. This article try to explain the procedure how we prepare teeth step by step until it’s ready to be measure.
Publisher: National Research and Innovation Agency
Date: 29-11-2019
DOI: 10.24164/PW.V8I2.302
Abstract: Cisaar Valley is located on the east part of Sumedang Regency, West Jawa Province. It’s close to the boundary of Sumedang-Majalengka Regency. In this location the sandy and clay dominated sedimentary rocks are well exposed along the outcrops in the Cisaar Valley. These sedimentary rocks is inferred from Pliocene-Pleistocene deposits from Kaliwangu and Citalang Formation. Foraminifera microfossil that commonly used for interpretation of depositional environment is rarely found, whereas freshwater mollusk and vertebrate fossils often found in the sediment rocks of this area. This condition raises a question, what is the environment of this valley in the past? Data obtained from measured stratigraphic sections along Cisaar river and its tributary rivers in Cibengkung and Cirendang hamlets, Jembarwangi village. There are at least three depositional paleoenvironments which from old to young are: shallow marine, estuarine and fluviatil braided channel depositional paleoenvironment. Characteristics of the lower, middle and upper of the estuarine environment were found in this Cisaar Valley as the evidences of the oceanic regression processes was happened in the past in this area.
Location: Indonesia
No related grants have been discovered for Anton Ferdianto.