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1Zircon U-Pb geochronology of basement metamorphic rocks in the Songliao Basin显示文摘Zircon LA-ICP MS U-Pb dating of six metamorphic rocks and a metagranite (breccia) from southern basement of the Songliao Basin are reported in order to constrain the formation ages of basement. The basement metamorphic rocks in the Songliao Basin mainly consist of metagabbro (L45-1), amphibolite (SN117), metarhyolitical tuff (G190), sericite (Ser) schist (N103), chlorite (Chl) schist (T5-1), biotite (Bi)-actinolite (Act)-quartz (Q) schist (Y205), and metagranite (L44-1). The cathodoluminesence (CL) images of the zircons from metagabbro (L45-1) and metagranite (L44-1) indicate that they have cores of magmatic origin and rims of metamorphic overgrowths. Their U-Pb isotopic ages are 1808±21 Ma and 1873±13 Ma, respectively. The zircons with oscillatory zoning from amphibolite (SN117) and Chl schist (T5-1), being similar to those of mafic igneous rocks, yield ages of 274 ± 3.4 Ma and 264 ± 3.2 Ma, re-spectively. The zircons from metarhyolitical tuff (G190) and Ser schist (N103) display typical magmatic growth zoning and yield ages of 424 ± 4.5 Ma and 287 ± 5.1Ma, respectively. Most of zircons from Bi-Act-Q schist (Y205) are round in shape and different in absorption degree in the CL images, implying their sedimentary detritals. U-Pb dating yield concordant ages of 427 ± 3.1Ma, 455 ± 12 Ma, 696 ± 13 Ma, 1384±62 Ma, 1649±36 Ma, 1778±18 Ma, 2450±9 Ma, 2579±10 Ma, 2793±4 Ma and 2953±14 Ma. The above-mentioned results indicate that the Precambrian crystalline basement (1808―1873 Ma) exists in the southern Songliao Basin and could be related to tectonic thrust, and that the Early Paleozoic (424―490 Ma) and Late Paleozoic magmatisms (264―292 Ma) also occur in the basin basement, which are consistent with the ages of the detrital zircons from Bi-Act-Q schist in the basement.PEI FuPing XU WenLiang YANG DeBin ZHAO QuanGuo LIU XiaoMing HU ZhaoChu 2007Chinese Science Bulletin2007,52,7:57
2Permian volcanisms in eastern and southeastern margins of the Jiamusi Massif, northeastern China: zircon U-Pb chronology, geochemistry and its tectonic implications显示文摘LA-ICP-MS zircon U-Pb dating and geochemical data for the Late Paleozoic volcanic rocks from eastern and southeastern margins of the Jiamusi Massif are presented to understand the regional tectonic evolution. Zircons from eight representative volcanic rocks are euhedral-subhedral in shape and dis- play striped absorption and fine-scale oscillatory growth zoning as well as high Th/U ratios (0.33―2.37), implying a magmatic origin. The dating results show that the Late Paleozoic volcanic rocks in the study area can be divided into two stages, i.e., the Early Permian (a weighted mean 206Pb/238U age of 288 Ma) and the Middle Permian volcanisms (a weighted mean 206Pb/238U age of 268 Ma). The former is com- posed mainly of basalt, basaltic-andesite, andesite and minor dacite. They are characterized by low SiO2 contents, high Mg# (0.40―0.59), enrichment in Na (Na2O/K2O = 1.26―4.25) and light rare earth elements (LREEs), relative depletion in heavy rare earth elements (HREEs) and high field strength ele- ments (HFSEs), indicating that an active continental margin setting could exist in the eastern margin of the Jiamusi Massif in the Early Permian. The latter consists mainly of rhyolite and minor dacite with high SiO2 (77.23%―77.52%), low MgO (0.11%―0.14%), enrichment in K2O (Na2O/K2O ratios < 0.80) and Rb, Th, U and depletion in Eu, Sr, P and Ti, implying a crust-derived origin. Therefore, it is proposed that the Middle Permian volcanic rocks could have formed under the collision of the Jiamusi and the Khanka Massifs.MENG En XU WenLiang YANG DeBin PEI FuPing Yu Yang Zhang XingZhou 2008Chinese Science Bulletin2008,53,8:42
3LA-ICP-MS zircon U-Pb dating from granitoids in southern basement of Songliao basin:Constraints on ages of the basin basement显示文摘Seven LA-ICP-MS zircon U-Pb datings from granitoids in the southern basement of the Songliao basin were done in order to constrain the ages of the basin basement. The cathodoluminescence (CL) images of the zircons from seven granitoids indicate that they are euhedral-subhedral ones with striped ab-sorption and obvious oscillatory zoning rims. The dating results show that a weighted mean 206Pb/238U age is 236±3 Ma for quartz diorite (sample No.T6-1) located in the western slope of the basin,that weighted mean 206Pb/238U ages are 319±1 Ma (2126 m) and 361±2 Ma (1994 m) for diorite (sample No.YC1-1) and granite (sample No.YC1-2) located in northern part of southeastern uplift of the basin,respectively,and that weighted mean 206Pb/238U ages are 161±5 Ma,165±2 Ma,165±1 Ma and 161±4 Ma for samples Q2-1,SN121,SN122,and SN72 granitoids located in southern part of southeastern uplift of the basin,respectively. The statistical results of ages suggest that the middle Jurassic granitoids con-stitute the main part of basement granitoids,and that the Hercynian and Indo-Sino magmatisms also occur in the basin basement. It is implied that the Songliao basin should be a rift one formed in the intracontinent or active continental margin settings in the late Mesozoic after the Middle Jurassic orogeny took place.GAO FuHong XU WenLiang YANG DeBin PEI FuPing LIU XiaoMing HU ZhaoChu 2007Science China Earth Sciences2007,50,7:31
4Chronology and Geochemistry of Mesozoic Volcanic Rocks in the Linjiang Area,Jilin Province and their Tectonic Implications显示文摘锆石 U-Pb 年龄和 geochemical 分析结果在 Linjiang 区域为 Naozhigou, Ergulazi,和 Sidaogou 形成的暴烈的岩石被介绍,抑制岩浆来源和他们的构造背景的性质的东南的吉林省。Naozhigou 形成主要由安山岩和流纹岩和它的加权的吝啬的 206Pb/238 为 13 锆石谷物的 U 年龄是 222 ± 1 妈。Ergulazi 形成由玄武岩的安山岩,玄武岩的 trachyandesite,和安山岩组成,并且六谷物给加权的吝啬的 206Pb/ Z38 131 ± 4 妈的 U 年龄。Sidaogou 形成主要由 trachyandesite 组成并且流纹岩,和六锆石谷物产出一个加权的平均数 206Pb/238 113 ± 4 妈的 U 年龄。暴烈的岩石有 SiO 2=60.24%77.46%, MgO =0.36%1.29%( Mg #= 0.32 0.40 )为 Naozhigou 形成, SiO 2=51.60%59.32%, MgO =3.70%5.54%( Mg #= 0.50 0.60 )为 Ergulazi 形成,和 SiO 2=58.28%76.32%, MgO =0.07%1.20%( Mg #= 0.14 0.46 )为 Sidaogou 形成。踪迹元素分析结果显示这些暴烈的岩石被丰富在轻稀土元素元素( LREE )和大离子亲石元素元素( LILE )描绘,在重稀土元素元素( HREE )的相对弄空和高度回答力量元素( HFSE , Nb , Ta ,并且 Ti ),并且否定 Eu 异例。与原始披风相比,在 Linjiang 区域的中生代暴烈的岩石有相对高的起始的 87Sr/86 Sr 比率(0.7053 0.7083 ) 并且低 ɛ Nd (t) 价值(到 2.43 的 −8.38 ) ,和显示一个食火鸟趋势。为 Naozhigou 形成的晚三叠纪的岩浆能从部分融化被导出一最新有北方中国 Craton 地下室的次要的参与的 accretional 外壳并且在 Yangtze Craton 和北方中国 Craton 的碰撞以后在前下面形成了紧张的环境。为 Ergulazi 和 Sidaogou 形成的早白垩纪暴烈的岩石能在活跃大陆人边缘与有关的构造背景下面被形成向西 Izanagi 板的 subduction。YU Yang XU Wenliang PEI Fuping YANG Debin ZHAO Quanguo 2009Acta Geologica Sinica(English Edition)2009,83,2:27
5Permian Tectonic Evolution in Southwestern Khanka Massif:Evidence from Zircon U-Pb Chronology,Hf isotope and Geochemistry of Gabbro and Diorite显示文摘激光脱离诱导地联合的血浆团 spectrometry (LA-ICP-MS ) 锆石 U-Pb 在 Hunchun 区域为二叠的斑粝岩和闪长岩标明日期和 geochemical 数据被介绍在学习区域抑制地区性的构造进化。从斑粝岩和闪长岩的锆石在形状是 euhedral 半形的并且象高 Th/U 比率(0.261.22 ) 一样显示好规模的摆动的 zoning,暗示他们的 magmatic 起源。标明日期的结果显示斑粝岩和闪长岩形成了在早二叠(在东南中国的 282inces 通常被叫作 Wan-Zhe-Gan 差错地区。地质上,这个地区由各种各样的年龄和取向的几条地区性的差错带组成。我们基于领域调查把差错分成了四个年龄组。Neoproterozoic 差错向东北正在罢工。他们从东北江西省开始并且延长对在安徽省的 Fuchuan 向东北,东北 Jiangxi-Fuchuan ophiolite 带的一样的地点。可能作为一条边界在 Neoproterozoic 期间扮演的差错与 m 指责一个盘子或块缝术的地区 ????CAO Huahua XU Wenliang PEI Fuping ZHANG Xingzhou 2011Acta Geologica Sinica(English Edition)2011,85,6:20
6Chronology and Geochemistry of Volcanic Rocks in the Cretaceous Suifenhe Formation in Eastern Heilongjiang,China显示文摘摘要:在在东方 Heilongjiang 省的 Suifenhe 形成的暴烈的岩石的锆石 U-Pb 年龄和 geochemical 数据被报导,并且他们的 petrogenesis 在这份报纸被讨论。Suifenhe 形成主要由暗岩,安山岩,和 dacite 组成。从安山岩和 dacite 的锆石是在形状的 euhedral 并且与高 Th/U 比率(0.18-0.57 ) 显示出典型摆动的 zoning,暗示它的 magmatic 起源。诱导地由激光脱离标明日期结果的锆石 U-Pb 联合了血浆团分光计(LA-ICP-MS ) 显示从安山岩的锆石的 206Pb/238U 年龄在 105106 妈以内变化,产出 105.5JI Weiqiang XU Wenliang YANG Debin PEI Fuping JIN Ke LIU Xiaoming 2007Acta Geologica Sinica(English Edition)2007,81,2:16
7SHRIMP zircon U-Pb dating and its geological significance of Chibaisong gabbro in Tonghua area,Jilin Province,China显示文摘SHRIMP zircon U-Pb dating for Chibaisong No.1 gabbro in the Tonghua area, Jilin Prov- ince, is discussed in the paper. The cathodoluminescence (CL) images of the zircons indicate that they can be divided into two major types, i.e. euhedral-subhedral one with striped absorption and round one with obvious oscillatory zoning rims. The dating results of the zircons suggest that Chibai- song gabbro in the Tonghua area was formed at 134±7Ma—the Early Cretaceous. The concordia ages of 2497±13Ma, 787±35Ma, 321±10Ma, 217±11Ma of zircons imply that the Tonghua area might geologically be located in the convergent region of the Yangtze Block (YB) and the North China Block (NCB) in the early Mesozoic and the zircons should be caught during magma intrusion. The existence of the Early Cretaceous basic dyke swarm in the Tonghua area shows that an intensive extensional environment occurred in the Early Cretaceous. It is suggested that the magmatism and lithospheric extension in the Tonghua area should be related to the subduction of the Pacific plate.PEI Fuping XU Wenliang YANG Debin ZHAO Quanguo 2006Science China Earth Sciences2006,49,4:13
8Repeated modification of lithospheric mantle in the eastern North China Craton:Constraints from SHRIMP zircon U-Pb dating of dunite xenoliths in western Shandong显示文摘Four dunite xenoliths from the Tietonggou intrusion of western Shandong,China,were subjected to SHRIMP zircon U-Pb dating to constrain timing of the North China Craton(NCC) destruction,a topic of much controversy.Cathodoluminescence images revealed that 15 of the 18 zircon grains from the xenoliths display striped absorption.The rest showed oscillatory growth zoniation.All the zircons had variable contents of Th(49-3569 ppm;average,885 ppm) and U(184-5398 ppm;average,1277 ppm),and variable Th/U ratios(0.15-2.04).These zircon characteristics indicate a magmatic origin.The zircon age data can be divided into five groups:131-145,151-164,261-280,434-452,and 500-516 Ma.Group I(131-145 Ma) is consistent with timing of formation of the Tietonggou high-Mg diorites.Group II(151-164 Ma) is similar in age to Middle-Late Jurassic magmatism in the eastern NCC,which included both mantle-derived and intensive crust-derived magmatism.Group III(261-280 Ma) is similar in age to the Emeishan large igneous province,and Group IV(434-452 Ma) is similar in age to Paleozoic high-silica magmatism in the eastern NCC.Group V(500-516 Ma) may correspond to the global Pan-African event.Results indicate repeated modification of lithospheric mantle in the eastern NCC,and suggest that the most intensive modification occurred in the late Mesozoic(131-164 Ma).YANG DeBin XU WenLiang GAO Shan XU YiGang PEI FuPing 2012Chinese Science Bulletin2012,57,6:5
9Zircon U-Pb age,geochemical and Nd isotopic data of Middle Jurassic high-Mg dioritic dike in Liaodong Peninsula,NE China显示文摘Zircon LA-ICP-MS U-Pb age,geochemical and Nd isotopic data are presented for a newly recognized high-Mg dioritic dike from Haicheng,Liaodong Peninsula,NE China,to constrain its petrogenesis. The zircons from the high-Mg diorite exhibit striped absorption and oscillatory growth zoning in the cathodoluminescence( CL) images,and have high Th/U ratios( 0. 05--0. 9),indicating a magma origin. Zircon LA-ICP-MS U-Pb dating indicates that206 Pb /238 U ages of 12 spots of zircons are between 167 Ma and 178 Ma,yielding a weighted mean206 Pb /238 U age of 172 ± 2 Ma( MSWD = 4. 1),which represents the forming age of the high-Mg dioritic dike,i. e. Middle Jurassic. Geochemically,the samples have SiO2= 55. 4--60. 6 wt. %,Na2 O = 2. 2--2. 76 wt. %,K2 O = 1. 32--2. 02 wt. % and( Na2 O + K2O) = 3. 82--4. 47 wt. %,belonging to sub-alkaline series and displaying a calc-alkaline evolutionary trend. They are characterized by high MgO( 4. 75--6. 85 wt. %),Mg#( 55--61),Cr( 130--262 ppm),Ni( 63--130 ppm),Sr( 568--857 ppm),and Ba( 484--1 130 ppm) contents,with geochemical features analogous to those of high-Mg adakites. They show variable εNd( t) values(-1. 3 to- 3. 9),with a weighted value of- 2. 7,which plot intermediately between the field of the ancient continental crust and the depleted mantle source,indicating that both the lower crust and mantle source are necessary for the generation of the parent magma of the Haicheng high-Mg diorites. The Haicheng high-Mg dioritic dike in the Liaodong Peninsula and the Jurassic magmatism in the eastern North China Craton formed under a continental crustal thickening setting that may be related to subduction of the Paleo-Pacific oceanic plate.LI Zhuang PEI Fuping MENG En 2014Global Geology2014,17,3:3
10Detrital Zircon U-Pb Geochronology of the Xilin Group: Constraints for the Early Paleozoic Tectonic Evolution of the Songliao Massif显示文摘The Xilin Group, composed of the Chenming, Laodaomiaogou, Qianshan and Wuxingzhen formations, is one of the Early Paleozoic terranes in the eastern Songliao Massif, mainly consisting of thick layers of fine clastic and carbonate rocks. This study presents LA-ICP-MS zircon U-Pb geochronological data for the Laodaomiaogou and Qianshan formations, further constraining their provenance and the Early Paleozoic tectonic evolution of the Songliao Massif on the eastern Central Asian Orogenic Belt. Most zircons from the Laodaomiaogou and Qianshan formations show magmatic oscillatory zoning and high Th/U ratios(0.26–2.41). Zircon U-Pb dating results indicate that the detrital zircons from the silty mudstone of the Laodaomiaogou Formation yield peak ages of 634 Ma, 775 Ma, 820 Ma, 880 Ma and 927 Ma, as well as multi-episodic Archean to Paleoproterozoic and Mesoproterozoic ages(1405–643 Ma), implying its deposition time is younger than ~634 Ma. Furthermore, the occurrence of Early Cambrian fossils indicates that the Laodaomiaogou Formation was deposited during the late stage of the Early Cambrian(~514 Ma). The zircons from the K-bentonite of the Qianshan Formation show four peak ages of 444 Ma, 471 Ma, 489 Ma and 518 Ma and the youngest age peak of 444 ± 4 Ma(n = 6) indicates that the Qianshan Formation was deposited during the Late Ordovician. In addition, the peak ages of the detrital zircons in the silty mudstone of the Qianshan Formation are 472 Ma and 498 Ma, as well as two other concordant points with;Pb/;Pb apparent ages of 1824 Ma and 1985 Ma. The dating results in this study, together with published data, indicate the absence of Pan-African magmatic events in the Songliao Massif prior to the initial deposition of the Xilin Group, in contrast to those distributed widely in the Jiamusi Massif. Taken together, we conclude that the depositional provenance of the Laodaomiaogou and Qianshan formations was derived from the Songliao Massif. Furthermore, the characteristics of the detrital zircon age composition and rock associations indicate that the Laodaomiaogou Formation formed in a passive continental margin environment, in contrast to the Qianshan Formation, which formed in an active continental margin environment. The above results also imply that the Songliao and Jiamusi massifs might not have collided before the Late Ordovician.SANG Tianjiao PEI Fuping XU Wenliang WANG Zhiwei JIAO Ji WEI Jingyang WANG Yipeng 2021Acta Geologica Sinica(English Edition)2021,95,6:1
11Triassic volca- nism in eastern Heilongjiang and Jilin provinces, NE China: Chronology, geochemistry, and tectonic implications 显示文摘Xu Wenliang Ji Weiqiang Pei Fuping 2009Journal of Asian Earth Sciences2009,34,:1
12Geochronology and geochemistry of Mesozoic mafic-ultramafic complexes in the southern Liaoning and southern Jilin Provinces, NE China: Constraints on the spatial extent of destruction of the North China Craton 显示文摘Pei Fuping Xu Wenliang Yang Debin 2011Journal of Asian Earth Sciences2011,40,:1
13Petrogenesis of late Mesozoic granitoids in southern Jilin Province, northeastern China: Geochronological, geochemical, and Sr-Nd-Pb isotopic evidence 显示文摘Pei Fuping Xu Wenliang Yang Debin 2011Lithos2011,125,12:1
14Chemical indexes of Paleoproterozoic sedimentary rocks from Liaohe Group,North China Craton:Implications for paleoclimate and provenance显示文摘Paleoproterozoic supracrustal materials have been widely identified in North China Craton,such as the Liaohe-,Hutuo-and Lyuliang groups.The Liaohe Group in the eastern part of the North China Craton is dominated by deformed and metamorphosed sedimentary and volcanic successions.Compared with that of the coeval volcanic rocks,geochemistry of the sedimentary rocks from the Liaohe Group has rarely been studied in detail,which can possibly provide information on the paleoclimate and provenance.The authors analyzed the whole-rock and detrital zircon geochemistry of sedimentary rocks from the Liaohe Group against a uniform process and proposed their different ways of paleoweathering of the lower and upper formations.That is to say,although the lower and upper formations within the Liaohe Group might be derived from the similar source composition in a tectonically active setting,the paleoclimate that they experienced was not exactly the same.The predominant derivations are the Paleoproterozoic granitoids and basalts within the Liaohe Group,with minor input of Archean continental crust.This study highlights the contributions of the Paleoproterozoic mafic sources,which has been generally overlooked in the previous researches.ZHANG Wei LI Zhuang YANG Fan PEI Fuping LIU Jin WANG Junhui WANG Zhiwei 2021Global Geology2021,24,2:0
15Geochronology,geochemistry and geodynamics implications of Middle Triassic garnet-bearing muscovite monzogranite in central Jilin Province显示文摘Zircon LA-ICP-MS U-Pb geochronology and geochemical analyses are undertaken for the garnet-bearing muscovite monzogranite in Yitong area,central Jilin Province. The formation age and petrogenesis of the granite are determined,and the regional tectonic background is discussed. Zircons from the granite are euhedral-subhedral in shape,and display fine-scale oscillatory growth zoning,indicating a magmatic origin. LAICP-MS zircon U-Pb dating result indicates that the garnet-bearing muscovite monzogranites formed in the middle Triassic( 243 Ma). The garnet-bearing muscovite monzogranites have high SiO_2( Si O2= 74. 1%--76. 49%),rich aluminum( Al_2O_3= 14. 47%--14. 68%) and alkali( Na_2O + K_2O = 4. 31%--7. 9%),low Fe_2O_3 T and MgO( MgO = 0. 1%--0. 13%,Fe_2O_3 T = 0. 46%--1. 02%). The ratio of CaO/Na_2O is between 0. 17--0. 21. The garnet-bearing muscovite monzogranites in Yitong region are relatively enriched in light rare earth elements( LREEs) and large ion lithophile elements( LILEs),and depleted of heavy rare earth elements( HREEs) and high field strength elements( HFSEs). They are characterized by high Sr and Ba,poor Rb and Y,and negative Eu abnormally( δEu = 0. 48--0. 62),with Rb/Sr < 1. The ε_(Hf)( t) values and T_(DM2) of zircons range from + 6. 10 to + 8. 00 and from 725 Ma to 814 Ma,respectively. The above features indicate that garnet-bearing muscovite monzogranites in Yitong area were derived from partial melting of metasedimentary rock.These granites have high Sr/Y ratios,which suggest they formed in a thickened continental crust. Combined with the coeval granitic rocks in central Jilin Province,we suggested that a significant collisional and thickening event took place during the Middle Triassic.JIAO Ji JIA Haiming PEI Fuping ZHOU Hao ZHOU Zhongbiao ZHANG Ying XU Wenliang 2018Global Geology2018,21,3:0
16Modification of the lithospheric mantle by melt derived from recycled continental crust evidenced by wehrlite xenoliths in Early Cretaceous high-Mg diorites from western Shandong, China显示文摘This paper reports petrographic, mineral chemical, olivine oxygen isotopic, and whole-rock geochemical data for wehrlite xenoliths from the Early Cretaceous Tietonggou high-Mg diorites in western Shandong Province, in the eastern part of the North China Craton (NCC), and describes the origin of these wehrlites and the processes that affected the deep lithospheric mantle in this area.Wehrlite xenoliths are rounded and vary in size between 3 cm × 4 cm 5 cm and 3 cm 2 cm 1 cm.Olivine within these xenoliths occurs as an isolated residual phase within clinopyroxene, has Fo contents between 89 and 91, and contains between 1414 and 3629 ppm Ni, similar to the values of olivine from peridotite xenoliths in the Cenozoic basalts of eastern China, but lower than the values of olivine from harzburgite xenoliths in the Early Cretaceous high-Mg diorites in western Shandong.In situ oxygen isotope analysis yielded 18 O values of olivine from (6.03±0.33)‰ to (6.82±0.35)‰, averaging (6.5±0.4)‰; this is higher than typical mantle-derived olivine ((5.2±0.3)‰).Compared with clinopyroxenes from peridotite xenoliths in the Late Cretaceous and Cenozoic basalts, clinopyroxenes in the wehrlites contain relatively low concentrations of Na 2 O, TiO 2 , and Al 2 O 3 , high concentrations of CaO, and higher Mg # (91.2-94.1) and Ti/Eu ratios (2082-2845), being similar in composition to clinopyroxenes within harzburgite xenoliths in the Early Cretaceous high-Mg diorites.Clinopyroxenes from wehrlite xenoliths are characterized by low total REE abundance, enrichment in light REEs, and depletion in high field strength elements such as Nb, Ta, Zr, and Hf.Moreover, the 87 Sr/ 86 Sr, 143 Nd/ 144 Nd, and 187 Os/ 188 Os (125 Ma) ratios of these wehrlites vary from 0.70596 to 0.70737, 0.512181 to 0.512416, and 0.12661 to 0.57650, respectively.These data suggest that these wehrlite xenoliths were formed by modification of the lithospheric mantle by melts derived from recycled continental crust.ZHOU QunJun XU WenLiang YANG DeBin PEI FuPing WANG Wei YUAN HongLin GAO Shan 2012Science China Earth Sciences2012,55,12:0
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