scholarly journals Geoconservation of Vertebrate and Human Ancient Fossils Site, The South TulungagungArea East Java

2019 ◽  
Vol 20 (4) ◽  
pp. 187
Author(s):  
Erick Setiyabudi ◽  
Agus Trihascaryo ◽  
Tutik Koesbarditi ◽  
Rusyad Adi Suriyanto ◽  
Delta Bayu Murti

The paleontology and archeology sites in southern Tulungagung, East Java are part of the geodiversity and geological heritage that has significance for the process of evolution and migration of early modern humans. The sites are Wajak Cave, Song Gentong, and Tenggar Cave (Late Pleistocene to Early Holocene) located in the marble and limestone ornaments mining area of the Campurdarat Formation. Geoconservation of the geological heritage continues to be carried out by research or excavation in these fossil sites to reveal the past life and paleoenvironment, where the fossil site is susceptible to the threat of damage due to surrounded mining activities.Keyword: Wajak Cave, Song Gentong, Tenggar Cave, limestone, marble, Campurdarat Formation.

2004 ◽  
Vol 56 (2-3) ◽  
pp. 155-169 ◽  
Author(s):  
Gerald A. Oetelaar

Abstract Researchers working in the Bow River valley have identified a minimum of four alluvial terraces, the upper two of which have been designated as paired terraces. Over the past 35 years, they have attempted to correlate these alluvial landforms and to generate models for the development of the terraces along the section of the Bow River between Calgary and the Rocky Mountains. In this study, Mazama ash and an early Holocene paleosol are used to correlate the terrace suites examined by previous researchers and to generate a model which accounts for the development of the upper two sets of paired terraces. These paired terraces reflect major episodes of aggradation and degradation that result from changes in independent variables such as climate and uplift. The initial episode of aggradation, dating from the late Pleistocene, is the result of paraglacial processes in a sparsely vegetated, yet saturated environment. Following a brief episode of degradation at the end of the Younger Dryas, the second episode of aggradation, dating from 9000 to 5000 BP, is caused by increased sediment load and lowered stream power during the Hypsithermal.


AMERTA ◽  
2017 ◽  
Vol 35 (2) ◽  
pp. 93
Author(s):  
Suryatman Suryatman ◽  
Budianto Hakim ◽  
Afdalah Harris

Abstract. The Microlith Tool Industry at Balang Metti Site: Late Toalean Technology and Cultural Contact in the Highlands of South Sulawesi.The presence and distribution of microlith tools in Africa, Europe, and Asia have often been debated by prehistorians. The technology was brought by Early Modern Humans out of Africa to some areas of Europe and Asia during the Late Pleistocene. In South Sulawesi, it exists from the Middle to Late Holocene and is classed as part of the ‘Toalean’ culture. Excavations at Balang Metti site revealed a layer of microlith tools representing an industry that occurred for no more than 3,500 years ago. This is remarkable as the site is located in the highlands, whereas all previously known Toalean occupation sites are dispersed throughout the lowlands of South Sulawesi. The purpose of our research is to explain this microlith technology, especially the implication of its cultural contact, which occurred up to the highlands. Research methods done by classified, counted, and measured all lithic artefacts from excavation. The results show that the early stages of flaking (reduction) occurred not only in the cave but also out of the site, possibly close to the raw material sources. Abstrak.Kehadiran dan persebaran alat mikrolit di Afrika, Eropa, dan Asia telah diperdebatkan oleh kalangan peneliti prasejarah. Peralatan tersebut dibawa oleh manusia modern awal keluar dari Afrika ke beberapa wilayah Eropa dan Asia pada akhir Pleistosen. Di Sulawesi Selatan peralatan ini baru muncul pada pertengahan hingga akhir Holosen dan digolongkan sebagai bagian dari budaya Toalean. Penggalian di Situs Balang Metti menunjukkan lapisan budaya industri alat mikrolit berumur tidak lebih dari 3.500 tahun. Permasalahannya adalah situs tersebut berada di wilayah dataran tinggi, yang sebelumnya situs-situs hunian Toalean hanya ditemukan tersebar di wilayah dataran rendah Sulawesi Selatan. Penelitian ini bertujuan untuk menjelaskan teknologi alat mikrolit dan implikasi kontak budaya yang terjadi hingga di dataran tinggi Sulawesi Selatan. Metode penelitian dilakukan dengan mengklasifikasi, menghitung, dan mengukur semua artefak batu dari penggalian. Hasil penelitian menunjukkan bahwa proses penyerpihan tidak hanya dilakukan di dalam gua, tetapi juga di luar gua yang mungkin tidak jauh dari lokasi pengambilan bahan.


2016 ◽  
Vol 113 (23) ◽  
pp. 6380-6387 ◽  
Author(s):  
Montgomery Slatkin ◽  
Fernando Racimo

We review studies of genomic data obtained by sequencing hominin fossils with particular emphasis on the unique information that ancient DNA (aDNA) can provide about the demographic history of humans and our closest relatives. We concentrate on nuclear genomic sequences that have been published in the past few years. In many cases, particularly in the Arctic, the Americas, and Europe, aDNA has revealed historical demographic patterns in a way that could not be resolved by analyzing present-day genomes alone. Ancient DNA from archaic hominins has revealed a rich history of admixture between early modern humans, Neanderthals, and Denisovans, and has allowed us to disentangle complex selective processes. Information from aDNA studies is nowhere near saturation, and we believe that future aDNA sequences will continue to change our understanding of hominin history.


1997 ◽  
Vol 47 (3) ◽  
pp. 337-343 ◽  
Author(s):  
Yang Wang ◽  
A.Hope Jahren ◽  
Ronald Amundson

Hackberry endocarp (Celtissp.) contains significant amounts (up to 70 wt%) of biogenic carbonate that is nearly pure aragonite (CaCO3). Because of their high mineral content, hackberry endocarps are found abundantly in Tertiary and Quaternary sediments and are very common in many North American archaeological sites. We analyzed the14C content of different components of modern hackberries including the biogenic carbonate in hackberry endocarps collected at known times over the past century. The14C content of the endocarp carbonate accurately records the14C content of the atmosphere.14C dates of fossil endocarp carbonates compared favorably with dates obtained by other means at archaeological and geological sites ranging in age from the late Pleistocene through the early Holocene. We therefore suggest that hackberry endocarp is a suitable substrate for14C dating provided that its morphological and mineralogical integrity is preserved.


Transfers ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 131-149

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