Pub Date : 2013-02-07DOI: 10.3724/SP.J.1140.2012.04107
Haiyan Jin, Z. Jian, P. Qiao, Xinrong Cheng
{"title":"THE SEA SURFACE TEMPERATURE AND OXYGEN ISOTOPE CHANGES IN THE WESTERN PACIFIC WARM POOL DURING THE MID-PLEISTOCENE TRANSITION PERIOD: THE SEA SURFACE TEMPERATURE AND OXYGEN ISOTOPE CHANGES IN THE WESTERN PACIFIC WARM POOL DURING THE MID-PLEISTOCENE TRANSITION PERIOD","authors":"Haiyan Jin, Z. Jian, P. Qiao, Xinrong Cheng","doi":"10.3724/SP.J.1140.2012.04107","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.04107","url":null,"abstract":"","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"107-113"},"PeriodicalIF":0.0,"publicationDate":"2013-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69771788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-02-07DOI: 10.3724/SP.J.1140.2012.04115
Dan Liang, Chuanlian Liu, X. Su
The analysis of coccolith species and percentage for the past 380 ka from Site KX97321-2 of the central West Pacific Warm Pool has been carried out.The results show that the relative abundance of Florisphaera profunda increased in the last 380 ka,indicating the decline of nutricline depth and the decrease in primary productivity.The relative abundance of Gephyrocapsa spp.however,dropped in the last 380 ka.Gephyrocapsa caribbeanica was the most abundant species in the Mid-Brunhes interval as the result of the adaptive evolution to the Mid-Brunhes peculiar environment.Based on the spectrum analysis of primary productivity converted from F.profunda,100 ka and 30 ka cycles were discovered during the last 380 ka.20 ka cycle was found obvious in the 0~80 ka and 320~380 ka,and 40 ka cycle in the 80~320 ka.
{"title":"COCCOLITH VARIATIONS IN CENTRAL WEST PACIFIC WARM POOL AND THEIR RESPONSE TO ENVIRONMENTAL CHANGE DURING LATE QUATERNARY","authors":"Dan Liang, Chuanlian Liu, X. Su","doi":"10.3724/SP.J.1140.2012.04115","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.04115","url":null,"abstract":"The analysis of coccolith species and percentage for the past 380 ka from Site KX97321-2 of the central West Pacific Warm Pool has been carried out.The results show that the relative abundance of Florisphaera profunda increased in the last 380 ka,indicating the decline of nutricline depth and the decrease in primary productivity.The relative abundance of Gephyrocapsa spp.however,dropped in the last 380 ka.Gephyrocapsa caribbeanica was the most abundant species in the Mid-Brunhes interval as the result of the adaptive evolution to the Mid-Brunhes peculiar environment.Based on the spectrum analysis of primary productivity converted from F.profunda,100 ka and 30 ka cycles were discovered during the last 380 ka.20 ka cycle was found obvious in the 0~80 ka and 320~380 ka,and 40 ka cycle in the 80~320 ka.","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"115-121"},"PeriodicalIF":0.0,"publicationDate":"2013-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69771809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-02-07DOI: 10.3724/SP.J.1140.2012.04041
Xiangtao Zhang, Liang Chen, Q. She, Sufang Zhang, P. Qiao, L. Shao
{"title":"PROVENANCE EVOLUTION OF THE PALEO-HANJIAN RIVER IN THE NORTH SOUTH CHINA SEA: PROVENANCE EVOLUTION OF THE PALEO-HANJIAN RIVER IN THE NORTH SOUTH CHINA SEA","authors":"Xiangtao Zhang, Liang Chen, Q. She, Sufang Zhang, P. Qiao, L. Shao","doi":"10.3724/SP.J.1140.2012.04041","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.04041","url":null,"abstract":"","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"41-48"},"PeriodicalIF":0.0,"publicationDate":"2013-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69771908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-02-07DOI: 10.3724/SP.J.1140.2012.04139
M. Jie, Li Anchun, Meng Qingyong, Wang Shiming, Y. Wenwen
Using XRD method,the clay minerals of two Quaternary cores F090815 and F100609 located in Parece Vela Basin,East Philippine Sea were studied in this article.The results show that there are some differences in mineral assemblage between the north and the south.In the southern core F090815 the most abundant content is smectite(50%),then illite(37%),and the lowest is kaolinite and chlorite(13%);however,in the northern core F100609 the most abundant content is illite(47%),then smectite(39%),and the lowest is kaolinite and chlorite(14%).According to contents and characteristic of clay minerals,both the cores F090815 and F100609 can be divided into four parts.According to assemblage characteristic,chemical index and crystallinity of clay minerals,we think that smectites were originated from submarine basalt alteration in the Mariana Trough;while illites were derived mainly from the west continent under strongly physical weathering probabeg associated with the tormation of loess in the East Asia continent,so were kaolinite and chlorite.
{"title":"QUATERNARY ASSEMBLAGE CHARACTERISTIC AND PROVENANCE OF CLAY MINERALS IN THE PARECEVELA BASIN OF THE EAST PHILIPPINE SEA","authors":"M. Jie, Li Anchun, Meng Qingyong, Wang Shiming, Y. Wenwen","doi":"10.3724/SP.J.1140.2012.04139","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.04139","url":null,"abstract":"Using XRD method,the clay minerals of two Quaternary cores F090815 and F100609 located in Parece Vela Basin,East Philippine Sea were studied in this article.The results show that there are some differences in mineral assemblage between the north and the south.In the southern core F090815 the most abundant content is smectite(50%),then illite(37%),and the lowest is kaolinite and chlorite(13%);however,in the northern core F100609 the most abundant content is illite(47%),then smectite(39%),and the lowest is kaolinite and chlorite(14%).According to contents and characteristic of clay minerals,both the cores F090815 and F100609 can be divided into four parts.According to assemblage characteristic,chemical index and crystallinity of clay minerals,we think that smectites were originated from submarine basalt alteration in the Mariana Trough;while illites were derived mainly from the west continent under strongly physical weathering probabeg associated with the tormation of loess in the East Asia continent,so were kaolinite and chlorite.","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"139-148"},"PeriodicalIF":0.0,"publicationDate":"2013-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69772010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-02-07DOI: 10.3724/SP.J.1140.2012.04001
Li Li, Yuxing Chen, Hui Wang, Juan He
The thermal history of the southern South China Sea(SCS) exhibited a reducing tendency since Pleistocene.The temperature profile is characterized by a cooling trend during glaciations but remains steady during interglaciations.Meridional thermal gradient between southern and northern SCS reflects the Eastern Asian Winter Monsoon(EAWM) change.Thermal gradient history during the past 2 Ma indicated that EAWM was strengthened before mid-Pleistocene and weakened since then,but restrengthened in the later Quaternary.This long term trend is superimposed by orbital glacial cycles with the EAWM stronger during interglaciations and weaker during glaciations.Tectonic uplifting of the Tibetan Plateau may have important influence on the strengthening of EAWM in the mid-Pleistocene.Global ice volume and ENSO changes may be the main reasons for the overall trend and the orbital cycle of EAWM.
{"title":"SEA SURFACE TEMPERATURE CHANGE IN SOUTH CHINA SEA SINCE PLEISTOCENE AND ITS PALEOCLIMATIC IMPLICATIONS: SEA SURFACE TEMPERATURE CHANGE IN SOUTH CHINA SEA SINCE PLEISTOCENE AND ITS PALEOCLIMATIC IMPLICATIONS","authors":"Li Li, Yuxing Chen, Hui Wang, Juan He","doi":"10.3724/SP.J.1140.2012.04001","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.04001","url":null,"abstract":"The thermal history of the southern South China Sea(SCS) exhibited a reducing tendency since Pleistocene.The temperature profile is characterized by a cooling trend during glaciations but remains steady during interglaciations.Meridional thermal gradient between southern and northern SCS reflects the Eastern Asian Winter Monsoon(EAWM) change.Thermal gradient history during the past 2 Ma indicated that EAWM was strengthened before mid-Pleistocene and weakened since then,but restrengthened in the later Quaternary.This long term trend is superimposed by orbital glacial cycles with the EAWM stronger during interglaciations and weaker during glaciations.Tectonic uplifting of the Tibetan Plateau may have important influence on the strengthening of EAWM in the mid-Pleistocene.Global ice volume and ENSO changes may be the main reasons for the overall trend and the orbital cycle of EAWM.","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2013-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69771451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-01-14DOI: 10.3724/SP.J.1140.2012.03055
Lifei Wang, Lihua Guo, Xin Nie
{"title":"STRUCTURAL FEATURES AND EVOLUTIONARY STAGES OF THE WESTERN DEPRESSION OF THE NORTH YELLOW SEA BASIN: STRUCTURAL FEATURES AND EVOLUTIONARY STAGES OF THE WESTERN DEPRESSION OF THE NORTH YELLOW SEA BASIN","authors":"Lifei Wang, Lihua Guo, Xin Nie","doi":"10.3724/SP.J.1140.2012.03055","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.03055","url":null,"abstract":"","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"55-62"},"PeriodicalIF":0.0,"publicationDate":"2013-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69770824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-01-14DOI: 10.3724/SP.J.1140.2012.03069
L. Tao, Wang-shui Hu, Shui Yu, Xiaojun Long, Y. He, Chan Wu, Chuan Chen
This article deals with the ductile structures in the deep-water gravitational decollement structure system at the Passive Continental Margin of West African.It is found that ductile structures are widely distributed along the whole passive continental margin,and the ductile salt rocks are particularly developed in the southwest and northwest within the transitional structural layer(J-K).In the Niger delta at the middle part of the passive margin of West Africa,ductile bed is mainly consisting of mudstone of Tertiary.According to the structural characteristics of the gravitational detachment structure system,the ductile structures could be divided into three types: the gravitational decollement extensional structures at the upper part characterized by normal fault and ductile;the gravitational decollement diapir structures at the middle part;and the gravitational decollement thrust structures at the lower part.According to the time of deformation of the ductile structure,the ductile structures could be grouped into two types of epigenetic and syngenetic structures.Deformation of ductile beds is mainly affected by the basement tilting and deposition rate of the overlying strata.The control of structures over oil and gas accumulation decreases in an order of diapir,fold,thrust and ductile welding structure.
{"title":"DUCTILE STRUCTURES IN GRAVITATIONAL DECOLLEMENT STRUCTURE SYSTEM AT PASSIVE CONTINENTAL MARGIN OF WEST AFRICAN","authors":"L. Tao, Wang-shui Hu, Shui Yu, Xiaojun Long, Y. He, Chan Wu, Chuan Chen","doi":"10.3724/SP.J.1140.2012.03069","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.03069","url":null,"abstract":"This article deals with the ductile structures in the deep-water gravitational decollement structure system at the Passive Continental Margin of West African.It is found that ductile structures are widely distributed along the whole passive continental margin,and the ductile salt rocks are particularly developed in the southwest and northwest within the transitional structural layer(J-K).In the Niger delta at the middle part of the passive margin of West Africa,ductile bed is mainly consisting of mudstone of Tertiary.According to the structural characteristics of the gravitational detachment structure system,the ductile structures could be divided into three types: the gravitational decollement extensional structures at the upper part characterized by normal fault and ductile;the gravitational decollement diapir structures at the middle part;and the gravitational decollement thrust structures at the lower part.According to the time of deformation of the ductile structure,the ductile structures could be grouped into two types of epigenetic and syngenetic structures.Deformation of ductile beds is mainly affected by the basement tilting and deposition rate of the overlying strata.The control of structures over oil and gas accumulation decreases in an order of diapir,fold,thrust and ductile welding structure.","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"69-76"},"PeriodicalIF":0.0,"publicationDate":"2013-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69770978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-01-14DOI: 10.3724/SP.J.1140.2012.03045
Li Guogang, Hu Bangqi, Jun Li, Bu Ruyuan, Y. Min, Dou Yan-guang
In this study,a total of 274 surface sediments from the offshore area of Shandong Peninsula were collected and analyzed for grain-size,total organic carbon(TOC),and major elementss.Results show that SiO2 is the highest major element,followed by Al2O3 as the second.These two major elements make up 77.8% of the total major elements.The composition of major elements depends upon the type of sediment or grain-size.SiO2 is usually enriched in the coarse-grained sediments,whereas Al2O3、Fe2O3、MgO、MnO、P2O5 and K2O are relatively concentrated in fine-grained sediments.However,Na2O and TiO2 are independent from sediment types.The results of correlation and R-factor analysis suggested that the distribution of major element in the surface sediments from the offshore area of Shandong Peninsula can be classified to three groups.The first group consists of SiO2、Al2O3、Fe2O3、MgO、K2O、TiO2、P2O5、TOC,the second includes CaO and CaCO3,and Na2O and MnO belong to the last groups.These three groups may probably represent terrigenous,marine biogenous and marine authigenic sediments respectively.The chemical weathering index of the surface sediments varies from 50-65,depending upon their provenance.The CIA and TiO2/Al2O3 values suggest that the Huanghe sediments are mainly deposited along the offshore area of Shandong Peninsula,controlled by the coastal currents and the sea bottom geomorphology.
{"title":"GEOCHEMISTRY OF MAJOR ELEMENTS IN THE SURFACE SEDIMENTS OF THE OFFSHORE AREA OF SHANDONG PENINSULA AND ITS GEOLOGICAL IMPLICATIONS","authors":"Li Guogang, Hu Bangqi, Jun Li, Bu Ruyuan, Y. Min, Dou Yan-guang","doi":"10.3724/SP.J.1140.2012.03045","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.03045","url":null,"abstract":"In this study,a total of 274 surface sediments from the offshore area of Shandong Peninsula were collected and analyzed for grain-size,total organic carbon(TOC),and major elementss.Results show that SiO2 is the highest major element,followed by Al2O3 as the second.These two major elements make up 77.8% of the total major elements.The composition of major elements depends upon the type of sediment or grain-size.SiO2 is usually enriched in the coarse-grained sediments,whereas Al2O3、Fe2O3、MgO、MnO、P2O5 and K2O are relatively concentrated in fine-grained sediments.However,Na2O and TiO2 are independent from sediment types.The results of correlation and R-factor analysis suggested that the distribution of major element in the surface sediments from the offshore area of Shandong Peninsula can be classified to three groups.The first group consists of SiO2、Al2O3、Fe2O3、MgO、K2O、TiO2、P2O5、TOC,the second includes CaO and CaCO3,and Na2O and MnO belong to the last groups.These three groups may probably represent terrigenous,marine biogenous and marine authigenic sediments respectively.The chemical weathering index of the surface sediments varies from 50-65,depending upon their provenance.The CIA and TiO2/Al2O3 values suggest that the Huanghe sediments are mainly deposited along the offshore area of Shandong Peninsula,controlled by the coastal currents and the sea bottom geomorphology.","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"45-54"},"PeriodicalIF":0.0,"publicationDate":"2013-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69770746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-01-14DOI: 10.3724/SP.J.1140.2012.03063
G. Zhong, Changmao Feng, Zhenquan Wei
The Xisha Trough Basin,located on the continental slope of the northern South China Sea,is a Cenozoic deepwater basin.The sediment fill in the basin is about 1500 ~ 8000m in thickness,and becomes thinner from the center towards north and south.The sediments show a zonal distribution pattern in north-south direction.In seismic profiles,there is double-layer structure,of which the upper is formed with subsidence and the lower with rifting.The structures formed in the rifting stage were mainly of "Domino-style of half-graben",a series of half-graben controlled by major faults on one side(F1,F2,F3,F4,F5).The basin has experienced two stages of evolution: the first stage underwent rifting through Paleocene-Oligocene and filled with lacustrine deposits,the second stage underwent subsidence through Miocene-Quaternary and filled shallow or bathyal sediments.
{"title":"THE STRUCTURAL FEATURES OF XISHA TROUGH BASIN: THE STRUCTURAL FEATURES OF XISHA TROUGH BASIN","authors":"G. Zhong, Changmao Feng, Zhenquan Wei","doi":"10.3724/SP.J.1140.2012.03063","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.03063","url":null,"abstract":"The Xisha Trough Basin,located on the continental slope of the northern South China Sea,is a Cenozoic deepwater basin.The sediment fill in the basin is about 1500 ~ 8000m in thickness,and becomes thinner from the center towards north and south.The sediments show a zonal distribution pattern in north-south direction.In seismic profiles,there is double-layer structure,of which the upper is formed with subsidence and the lower with rifting.The structures formed in the rifting stage were mainly of \"Domino-style of half-graben\",a series of half-graben controlled by major faults on one side(F1,F2,F3,F4,F5).The basin has experienced two stages of evolution: the first stage underwent rifting through Paleocene-Oligocene and filled with lacustrine deposits,the second stage underwent subsidence through Miocene-Quaternary and filled shallow or bathyal sediments.","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"83 1","pages":"63-68"},"PeriodicalIF":0.0,"publicationDate":"2013-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69770844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-01-14DOI: 10.3724/SP.J.1140.2012.03147
Weihong Zhang, Jiangying Wu
{"title":"ECOLOGICAL RESPONSE OF δ 13 C TO HOLOCENE CLIMATE CHANGES FROM STALAGMITE RECORD IN NUANHE CAVE, LIAONING: ECOLOGICAL RESPONSE OF δ 13 C TO HOLOCENE CLIMATE CHANGES FROM STALAGMITE RECORD IN NUANHE CAVE, LIAONING","authors":"Weihong Zhang, Jiangying Wu","doi":"10.3724/SP.J.1140.2012.03147","DOIUrl":"https://doi.org/10.3724/SP.J.1140.2012.03147","url":null,"abstract":"","PeriodicalId":18188,"journal":{"name":"Marine Geology & Quaternary Geology","volume":"32 1","pages":"147-154"},"PeriodicalIF":0.0,"publicationDate":"2013-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69771242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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