규편모류, 에브리디안, 아케오모나드 및 내골격 와편모충류

고영구(Koh Yeong Koo) 한국고생물학회 2004 한국고생물학회 단행본 Vol.2004 No.6

서해 고군산군도 서측 해역 표층 퇴적물에서의 규편모류 산출 특성

고영구(Yeong Koo Koh) 한국고생물학회 2012 고생물학회지 Vol.28 No.1-2

고군산군도 서측해역의 17개 정점의 표층퇴적물에서 4속 16종 2품종의 규편모류가 산출되었다. 이중, Di. messanensis forma messanensis와 Di. messanensis forma spinosa가 매우 우세한 분류군으로 나타났다. 연구해역의 규편모류 골격에서는 어두운 색과 비정형개체들이 다산되며 비정형 개체들은 5 유형으로 분류되었다. 규편모류 군집조성에 의하면, 연구해역은 온난수괴의 영향을 받는 저염분의 연근해역에 해당하며 해저지형과 관련된 다양한 조류환경이 조성되고 있는 것으로 생각된다. 추가로, 연구해역의 이런 환경적 조건들은 불규칙한 기저환을 포함하는 비정형 생성에 주로 영향을 미치는 것으로 여겨진다. From the 17 surface sediments in the western area of Gogunsan Islands, 16 silicoflagellate species and 2 formas belonging to 4 genera were identified. Of them, Di. messanensis forma messanensis and Di. messanensis forma spinosa were extremely dominate taxa. Among silicoflagellate skeletons in the study area, dark and aberrant ones are frequent. Aberrant individuals of the silicoflagellates are classified into 5 types. On the basis of silicoflagellate assemblages from the sediments, it is considered that the study area is assigned to neritic and low saline environment influenced by warm water mass, and variable tidal conditions related with submarine topography are formed in the area. In addition, above environmental conditions might mainly control the aberrant forms including irregular basal rings of silicoflagellates in the study area.

전라남도 어촌 6차 산업 활성화 방안-무안 습지보호지역을 중심으로-

고영구 ( Koh Yeong-koo ),오강호 ( Oh Kang-ho ),이동신 ( Lee Dong-shin ),윤석태 ( Youn Seok-tai ),차성식 ( Cha Seong-sig ),김해경 ( Kim Hai-gyoung ) 한국도서(섬)학회 2017 韓國島嶼硏究 Vol.29 No.3

This study considered 6^th industrialization activation plan to Muan tidal wetland protected area in the sides of policies, conditions, SWOT and industries. The study results would be used in 6^th industrialization and specialized policies on fishing villages in Jeonnam province. Muan tidal wetland protected area is across Hyeongyeong and Haeje myeon areas and designated as the 1^st of wetland protected ones. Advantages of the area indicated by SWOT analyses are excellent natural environment, suitable Infra construction, and energetic willingness to community development. Meanwhile, the analyses show following weak points a small-scale fishery, deficiency to driving 6^th industrialization, and weak foundation for basic to strong R&D. In the analyses, chances are strong policy supports on government task, promotion of 6th industrialization by the Ministry of Oceans and Fisheries(MOF), and establishment of empirical tour-hub. In addition, threats in the analyses list as aging and downsizing of fishery people, connection among areas, and beneficial conflict between each fishery group. The 6^th industrialization of fishing village in the study area needs to organize 1^st industry as fishery, most of all, and production section for sustainable development, next. Especially, the industrialization is most effective in areal characteristics that it would work in a central 3^rd industrial role of Muan Ecological Tidal Flat Center on the bases of above SWOT analyses. In addition, it needs specialization to reveal relatively advent natural resources and industrial structures with respect to 6^th industrialization for fishery development in Jeonnam province. In the perspective, it is recommended that 1^st centered area is Beolgyo-Jangheung, 2^nd area is Yeonggwang-Wando, and 3^rd area is Muan-Suncheon in centered industrialized areas.

포항 북부 연일층군의 학전층과 두호층의 해면침골과 식물규소체 산출에 의한 고해양환경 고찰

고영구 ( Koh Yeong-koo ),오강호 ( Oh Kang-ho ) 한국도서(섬)학회 2021 韓國島嶼硏究 Vol.33 No.4

To consider paleo-oceanographic environments on the Yeonil Group in the northern area of Pohang, diatomite and mudstone samples from the Hakjeon and the Duho formations of the group were analyzed in the scope of the occurrences of sponge spicules and phytoliths from the formations. A total of 13 sponge spicule types and of 10 morphological phytolith forms were identified from the samples in the above formations of Deokjang-ri and Cheongjin-ri areas. The siliceous microfossil frequencies are higher in the Hakjeon Formation relative to the Duho Formation, and the frequency trend is remarkable in sponge spicules. Sponge spicules from the samples belonged to megascleres mostly composed of monaxons with a bar. The monaxons are mainly oxeas, diactinals, and styles, monactinals in type. Of the yielded spicules from the samples, oxea was the most dominant and widely variable, in bar morphology and type. The morphological variations in oxeas were remarkable in bar geometry, canal form in bars, and banding form. In some oxeas, dissolved features as thinly plucked bar surfaces and depressions were observed. Other diactinals including acanthoxea were sparse and, similarly, other monactinals except styles were also rare in the frequencies of the samples. Other sponge spicules except monaxons were very rare in the samples. Additionally, plentiful destroyed spicule bars from the samples might be originated from oxea and style types on the bases of arrangement and bar form. Minute silica bodies belonging to phytoliths in morphology were classified into phytolith forms from the samples. Yielding very low frequencies, polyhedral forms in the phytolith ones were relatively constant from the samples. Other phytolith forms irregularly occurred and were very rare in the samples. From the above occurrences of sponge spicules and phytolith forms in the samples, it is inferred that the Yeonil Group in the study areas was deposited in nerictic environments influenced by transportation due to active sea waters and by surrounding land vegetation.

나주 오량동 일대에서 채집된 옹관편에 대한 광물 및 암석기재적 특성에 관한 연구

고영구 ( Yeong Koo Koh ),오강호 ( Kang Ho Oh ),윤석태 ( Seok Tai Yoon ),조미순 ( Mi Soon Cho ) 호남고고학회 2011 湖南考古學報 Vol.39 No.-

나주시 오량동 옹관 가마터에서 수집된 옹관시편의 태토와 제작과정에 대한 시사점을 얻기 위해 이들에 대한 주성분 원소, 미량원소 및 희토류원소들에 대한 지구화학적 분석과 함께 시편의 편광현미경 관찰을 바탕으로 한 광물학적, 퇴적학적 그리고 암석조직의 기재적 연구를 행하였다. 그리고 현미경 하에서 연구가 어려운 광물들의 산출을 탐색하기 위해 X선 회절 분석을 병행하였다. 그 결과, 이들 시편들의 제작에는 각종 화학성분들의 함량분포에서 주변 지질과 관련성이 높은 풍화토나 퇴적물 등에서 유래된 동일한 태토가 사용되었으며, 조직 관찰에서 조립질 입자들의 산출에서 보는 것처럼 하상 퇴적물이 혼합되었을 가능성을 시사하였다. 또한, 시편의 조직 관찰과 광물들의 산출특성은 이들 시편들이 옹관 제작과정에서 상당한 고온의 열적 이력을 거쳤음을 지시하는 것으로 생각된다. To consider some information on the original soil and the making processes of pottery coffins, geochemical analyses of major, trace and rare earth elements to the fragments of the coffins sampled from the Oyangdong furnace site, Naju city were carried out in this study. And, mineralogical, sedimentological and descriptive studies on the fragments were added on the basis of investigations by polarizing microscope. To detect minerals difficult to identify under a polarizing microscope, X-ray diffraction analysis was applied to the fragments together. From the results of above chemical and textural analyses, it is implied that weathered soils and sediments related to surrounding geology were used and fluvial sediments were also mixed in making pottery coffins. The pottery coffins might have been undertaken considerably high thermal condition during making processes on the basis of textural and mineralogical characteristics of the fragments.

한국고생물학회 창립 20주년 기념 "한국 고생물" : 규편모류, 에브리디안, 아케오모나드 및 내골격 와편모충류

고영구 ( Yeong Koo Koh ) 한국고생물학회 2004 N/A Vol.7 No.-

울릉분지 남동부의 시추코어에서 산출되는 규편모류, 에브리디안, 내골격 와편모조류 및 해면 골침

고영구(Yeong-Koo Koh) 한국고생물학회 2004 고생물학회지 Vol.20 No.2

전남 함해만의 연안 표층퇴적물에서 산출되는 해면침골을 비롯한 규질 생물 유해

고영구 ( Koh Yeong-koo ) 한국도서(섬)학회 2020 韓國島嶼硏究 Vol.32 No.2

To consider sedimentary environments and water mass in Hamhae Bay, along the southwestern coast of Korea, micropaleontological studies on siliceous organic remains including sponge spicules from the surface sediments of the bay were carried out. The sediments were sampled from 13 stations in strategic positions around the bay. A total of 13 sponge types and 4 silicoflagellate species belonging to 2 genera were found from the sediments. The silicoflagellates include one Dictyocha forma. Of the yielded sponge spicule types from the bay, monaxons including oxeas and styles occupy the majority of the spicules. Other monaxons occur at the level of few individuals in the bay. However, tetraxon and ployaxon type spicules are relatively very sparse. Oxeas and styles are subdivided into three and two types on the basis of morphology, respectively. The spicules show mutually different frequencies in accordance with sampling station positions from around the bay. Silicoflagellates are concentrated in Dictyocha fibula and D. messanensis f. messanensis in occurrences in the bay. The aforementioned sponge spicule occurrences are similar to that of silicoflagellates. In addition, the silicoflagellates mainly consist of dark individuals and include many abnormal ones. With these siliceous organic remains, some siliceous individuals inferred as phytoliths have also been observed in the sediments. Those siliceous organic remains indicated that Hamhae Bay is influenced by active tides with a warm water mass and nutrients somewhat flow into the semi-enclosed bay.

순천만 연안의 표층퇴적물에서 산출되는 해면침골과 규편모류

고영구 ( Koh Yeong-koo ),오강호 ( Oh Kang-ho ) 한국도서(섬)학회 2018 韓國島嶼硏究 Vol.30 No.2

This study considers micropaleontological approaches to relate siliceous micro-organic remain assemblages of sponge spicules and silicoflagellates to sedimentary environments and water mass in the coastal area of Suncheon Bay, Jeonnam. In the study, the sediment samples are achieved from 12 stations in above bay. The stations are of Waon Village, Anpung wetland, Mupungri, Hodongri and Jang-amri areas in Suncheon City and Boseong Gun. The sponge spicules and silicoflagellates were observed on smear slides prepared from the sediments. In the study areas, seven types of sponge spicules and three silicoflagellate species belonging to two genera were identified. Of the silicoflagellates, Dictyocha messanensis was classified into form level. Individual frequencies of sponge spicules and silicoflagellates are mutually considerably different in the area. The sponge spicules are mostly monaxons and few of triaxons in type. Oxeas and styles belonging monaxons are exceptionally dominant in the area. Other monaxons involving acanthoxeas, acanthostyles, tylostyles, acanthotylostyles are very low in frequency. Silicoflagellates are mostly Dictyocha messanensis f. messanensis and few of other species. The micro-organic remains concentrically occur in the eastern coast part of the study area. Above D. messanensis f. messanensis strongly indicates warm water mass in Pacific. In addition, the silicoflagellate skeletons are deeply dark and aberrant in many individuals. In general, dark silicoflagellate skeletons indicate reworking or redeposition. Additionally, aberrant forms are mainly reported in near shore environments characterized by low salinity and nutrient supply. On the bases of above silicoflagellate and sponge spicule assemblages, it is considered that the study area is typical near shore environment controlled by warm water mass and some active seawater motions.

관매도에 분포하는 퇴적암류에 대한 퇴적암석학적 예비연구

고영구 ( Yeong Koo Koh ),나범수 ( Bum Soo Na ),윤석태 ( Seok Tai Youn ),오강호 ( Kang Ho Oh ),박성일 ( Sung Il Park ) 한국도서(섬)학회 2015 韓國島嶼硏究 Vol.27 No.3

The Gwanmae do has a highly curved ria type coast forming a typical submerged shoreline. Two outcrops of sedimentary rocks were chosen from this island for the sedimentological study. The outcrop near harbor was mainly composed of sandstone beds of 1 ~ 2 m thickness intercalating with thin shale ones. Based on the characteristic alternation of sandstone and shale beds, the sandstone beds with thin shale beds were assigned to sSM(plane-stratified laminated sand-mud couplet) facies of Ghibaudo(1992). Meanwhile, outcrops around the northern coast of Gomsol seashore were assigned to lSM (laminated sand-mud couplet) of upper sandstone dominated part and lMS(laminated mud-sand couplet) of lower shale dominate part by Ghibaudo(1992), with respect to horizontal extension and lamination. The outcrops included several sedimentary structures such as the pisoid shape structure, ripple marks, crossed laminations, load structures and sedimentary dykes like the mud-volcano. With these structures several type of faults can develope in the outcrops. The sedimentary structures, crossed laminations, asymmetrical ripple marks, and shale flakes may relate to low-concentrated turbidity current. In addition, the metadepositional type convoluted beds, load structures and sedimentary dykes such as the mud-volcano indicate sediment liquefaction caused by the instability of sediments. Sedimentary instability might also form several type of faults in the outcrops while pisoid shape structures imply a calcret origin. From the above results, it is considered that sedimentary rocks of the study area were deposited under seasonal variation of semi-tropical climate.