• Analytical Science and Technology
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• v.18 no.4
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• pp.329-337
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• 2005

TL dating using pre-dose effect is concerned with the sensitivity increase of $110^{\circ}C$ TL peak in quartz following the pre-exposure of irradiation (pre-dose) in antiquity and heating to thermal activation temperature. Using the multiple activation (MA) method for determining an equivalent dose, the activation temperature was selected to $500^{\circ}C$ and the region of interest was selected from $85^{\circ}C$ to $105^{\circ}C$ on quartz sample from archaeological remains, roof-tile kiln. which was excavated at Chudong-Ri cultural site. It was concluded that the resultant date was determined to the age of $1725{\pm}25years$ AD (l ${\sigma}$ SD), which had more improved precision considering with e radiocarbon dates and was in good agreement with the age derived by archaeological assessment. Also it was concluded that the pre-dose dating should contribute significantly to future archaeological dating work in the range of the last 2000 years.

• Journal of Conservation Science
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• v.28 no.3
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• pp.185-192
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• 2012

Issues of chronology on archaeological remains or relics have been a storm-center of controversy when various archaeological researches have been done. Sometimes there is a limit for figuring out issues of chronology by archaeological research. In that case, the field of natural science is often needed to work out issues of chronology. Among various subjects in natural science, archaeomagnetism plays an important role in dating archaeological remains for baked earth bearing relics. In particular, archaeomagnetism is of use for sites where directly excavated dating proxy is unavailable. Terrestrial magnetism changes along with the passage of time and leaves trace by many kinds of residual magnetization which could be called fossil of terrestrial magnetism. Archaeomagnetic dating method is used to assign a date to the archaeological remains in which baked earth is found by measuring the changes of terrestrial magnetism through the thermal remanent magnetization retained in baked earth. This study aims to constrain the age of fire at Buinsa, Daege, Korea using 27 samples that were collected from a layer of baked earth. Buinsa is famous for the place where kept the first edition of Tripitaka Koreana, which was lost in fire at the second invasion of mongolia. In addition, there is a record that there was revolt around this region in A.D.1203. According to archaeomagnetic dating, ages of A.D.1150~1200 and A.D.1130~1210 were assigned for the two building sites in Buinsa, respectively. To this end, it can be concluded that the layer of baked earth on the two building sites in Buinsa recorded the vestige of fire caused by revolt.

• Journal of Conservation Science
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• v.33 no.3
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• pp.181-188
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• 2017

A total of 16 precious archaeomagnetic dating data were obtained from various historic sites including fired soils from eight archaeological sites on Jeju Island. We researched the measurement results of 12 pieces of data from before the Common Era (BCE), and four pieces of data from after the Common Era. First, the BCE data could be divided into three groups (A, B, and C) based on the difference in the archaeomagnetic data. By comparing the data accumulated in other parts of Korea and referring to the archaeological years, the order of the groups was as follows: A group (Bronze Age~Early Iron Age) ${\rightarrow}$ B group (Early Iron Age when the circular rim eomtodae pottery was excavated) ${\rightarrow}$ C group (Early Iron Age when triangulated rim jeomtodae pottery was excavated), with A group being the earliest data group and C group being the latest data group. In addition, the data after the Common Era could be used to determine the archaeomagnetic dating of the archaeological sites. Through the archaeomagnetic dating of Jeju's archaeological sites for the BCE period, the relative order of the relics was determined, and for the period after the Common Era, the absolute age of the historic sites was obtained. They are expected to be used diversely in the chronological study of Jeju.

• KOMUNHWA
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• no.70
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• pp.35-62
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• 2007

Songguk-ri site gained academic recognition by the excavation of stone coffin tomb with a bronze dagger in 1974. And it is confirmed that this site is epoch-making in Korean bronze age through the following excavation started in 1975. But the excavation reports published until now do not have even overall view of this site, thus it is difficult to get the whole picture of this site. Thus, in this paper the author reexamined all reports on this site and by making the map of overall view and distribution of archaeological features as a basic research. Moreover, I analyzed also artifacts from this site, and compared with the recent papers written by other researchers about the chronology and character. Songguk-ri site has livelihood domain which consists of dwelling pits, attached features, storage pits, pot-firing features, wood fence, abatises, buildings above ground, as well as cemetery which consists of stone-coffins, jar-coffins, pit tombs. Trace of making large terrace was also excavated. These features seem to belong to the same archaeological stage, dated about B.C.850-550, according to C14 dating. On the other hand, the intensification of wet-rice cultivation made this group more productive. Based on this financial strength, some influential group emerged they constructed defensive settlement to protect their products safely. Besides it seems that there were frequent occurrence of conflicts. However, we can know that they kept their stable life, through the expansion of living space. Consequently, Songguk-ri site played a role of the summit among some settlement in this area.

• The Korean Journal of Quaternary Research
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• v.25 no.1
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• pp.31-39
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• 2011

Phytolith of soil in earthenware buried in the wooden chamber tombs at the archaeological site in Hwangseong-dong, Gyeongju along Hyeongsan River are analyzed. The study area has adjoined the seat of government during approximately thousand years in Shilla Dynasty and can be regarded as being closely related to the agricultural activities using the floodplains of Hyeongsan River. By the analytical results, Phragmites, Paniceae and Andropogoneae as well as Oryza sativa are found in the lower horizons, indicating the agricultural activities in the nearby areas. It is suggested for understanding the use of earthenware that the comparisons of buried soils in the site and soils in the earthenware and analysis on the macro plant fossils of soil in the earthenware are needed.

• The Korean Journal of Quaternary Research
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• v.24 no.1
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• pp.25-33
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• 2010

Holocene vegetation and climate changes were assumed on the basis of pollen records from Wonpyeong Trench II-3 of the Osong archaeological site, Cheongju, Chungbuk Province, Korea. An organic matter beared in coarse sediments appeared to be low throughout the succession. Although an occurrence of pollen grains is not high, some dominant and principal taxa may indicate vegetation changes response to climate changes in central inland area of the Korean Peninsula. The age determination can be estimated with indirect way by comparing with previous age-controlled pollen studies. It is assumed that the former last glacial conifer forests had been changed into open mixed conifers and deciduous broadleaved forest during the early Holocene period. Warmer and more humid climate conditions, during the mid-Holocene, might have allowed the hardwoods including deciduous- and evergreen-broadleaved trees, and warm-preferring pine tree to flourish. Subsequently, the former forests were replaced by mixed of conifer and deciduous broadleaved forest owing to deterioration of climate conditions during the late Holocene. Human activity is also detected by agricultural indicators, such as buckwheat and large pollen grains comparable to corn, in upper most pollen profile. During this time, the forests in studied area were primarily affected by human disturbance rather than natural environment.

• Conservation Science in Museum
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• v.24
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• pp.37-54
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• 2020

This paper presents an archaeological interpretation of the results of conservation treatment and scientific analysis of the ancient Chinese bronze coin known as Huo Quan(貨泉) coins excavated from Tomb No. 4 at the Madeung Archaeological Site in Heukcheon-ri, Haenam. Huo Quan coins were issued in China by Wang Mang(王莽) when he founded the short-lived Xin(新) Dynasty and were used in the Samhan(三韓) period in Korea. A total of thirteen Huo Quan coins were excavated from the Madeung Archeological Site with some coins fused to each other. They were classified as clusters A, B, and C. On a coin from the B cluster the classical Chinese characters "貨泉" are visible to the naked eye, but no characters are visually identifiable in the other coins. For conservation treatment, foreign substances attached to the surfaces of the coins were removed, weak materials were reinforced with protective coatings, and fragments were reattached to the main bodies of the coins. Next, Nano CT scanning was conducted to identify the exact number of coins within the clusters and examine the surface condition of the coins. It revealed the inscription "貨泉" on twelve out of thirteen coins. In addition to these coins excavated from Heukcheon-ri, a number of coins were excavated from a tomb in Bokryong-dong, Gwangju. This necessitates an investigation into the possible development of a monetary economy in this region.

• 한국문화재보존과학회:학술대회논문집
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• 2006.11a
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• pp.81-86
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• 2006

• Korean Journal of Veterinary Research
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• v.41 no.3
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• pp.275-279
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• 2001

The classification of bony pieces which were excavated from Jongdali archaeological site in Jeju was studied. The total number of bone remains were 81 pieces, in which 31 pieces were classified into animal bones. The animal species consisted of Cervus spp., Sus scrofa, Bos taurus and Equus caballus. This finding suggests that the major fauna in this peroid(B.C. 100 - A.D. 100) is wild boar, deer, horse and cattle.

• The Korean Journal of Quaternary Research
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• v.13 no.1
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• pp.35-43
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• 1999

Goryeri archaeological site is located in the upstream valley of the Danjang River. The basement rocks of the area are composed of the Cretaceous to Palaeogene biotite granite (KbGr), acidic dyke (Kad), Milyang Andesite (Kma) and Jyunggagsan Formation. Among them Milyang Andesite and Jyunggagsan Formation are prevailed in archaeological site and they are composed of reddish brown tuffaceous shale, sandstone and conglomerate, with intercalations of acidic tuffs and lapilli tuffs. The purpose of this research is not only to compare REE pattern of the soil-sedimentary deposits with those of surrounding rocks, but also to identify vitric tephra in the soil-sedimentary deposits derived from the andesite, acidic tuff and lapilii tuff, in order to illucidate the provenance of the vitric tephra. The rare earth element(REE) of the soils and sedimentary deposits results in the same REE pattern with those analyzed from the surrounding basement rocks. This indicates that the soils and sedimentary deposits are originated from the surrounding basement rocks, most probably from the andesite and lapilli tuff. In addition, vitric tephra were identified both in the Quaternary in-situ weathered soils and sedimentary deposits (PMU-13 and PMU-17), and in the weathered surrounding lapilli tuff. These vitric tephra are considered to be different from those of Japanese AT(Aira Tanzawa) -tephra. The latter is predominant with clean, platty, bubble-walled and Y-shaped vitrics, while the former is conspicuous with those shapes of large and diverse size and devitrified, as well as having secondarily bubbled-surfaces reflecting surface weathering. The size of vitric fragments in the Goryeri site is about 300${\mu}{\textrm}{m}$ and large in size in compasion to 150${\mu}{\textrm}{m}$ of Japanese AT-Tephra. The interim results of the research are contradictary to the explanations based on a series of AT-tephra researches carried by Japanese scholar. In short, the vitric materials of the Goryeri archaeological site are most probably originated from the weathering products of the surrounding basement rocks, and are different from the AT-tephra in their size, shape and devitrification properties. Thus it is highly recommended to have a further comprehensive research which is more emphasized the magmatic genesis of these vitric tephra in addition to the external shape and morphology.