Classification of Shijiagou Formation in Quaternary in Shandong Province
MENG Yonghui1, YU Deqin2, WANG Qingbing1, WANG Zhentao1, YANG Xiaojuan1
1. Shandong National Land Space Ecological Restoration Center, Shandong Jinan 250014, China; 2. Shandong Institute of Geological Survey, Shandong Jinan 250014, China
Abstract：The chronological age of Shijiagou Formation is always controversial. On the basis of systematical summary of the stratigraphic division of Shijiagou Formation in Shandong Province, the authors in this paper have systematically sampled 11 profile outcrops of Shijiagou Formation in Penglai, Changdao and Wudi, and obtained 14 K-Ar ages and 2 ESR ages. Through the comparative analysis with previous dating data, it is found that Quaternary Pleistocene basalt is only exposed in Jieshi Mountain (0.87 Ma) in Wudi and Yingkou Mountain (1.51 Ma) in Beigou Town, Penglai City in Shandong, while other test ages are Neogene (9.24~5.02 Ma). The basalt strata in Penglai and Changdao areas mostly belong to the Yaoshan Formation in the Late Miocene (except for Yingkou Mountain in Beigou Town of Penglai City), while only a few belong to the Quaternary Shijiagou Formation. It is suggested that the basalt in Wudi Mountain and Yingkou Mountain of Beilinyuan in Penglai should be classified as Quaternary, and the Quaternary Shijiagou Formation exposed in other areas should be classified as Neogene.
[1] 张守信. 中国岩石地层对比研究——清理中国岩石地层单位[J].中国区域地质,1992,11(3):193-202. Zhang S X.Lithostratigraphic correlation research in China:Clea-ning Chinese lithostratigraphic units[J].Reg Geol China,1992,11(3):193-202. [2] 全国地层委员会.中国地层指南及中国地层指南说明书(2016年版)[M].北京:地质出版社,2016:3-15. All China Commission of Stratigraphy.Stratigraphic Guide of China[M].Beijing:Geological Publishing House,2016:3-15. [3] 国际地层委员会.国际年代地层表(2020中文版)[M].张宁,译.武汉:武汉地铁集团,2020:5-7. International Commission on Stratigraphy.International Chronostratigratigraphic Chart (2020 Chinese)[M].Zhang N,trans.Wuhan:Wuhan Metro Group,2020:5-7. [4] 山东省区域地层表编写组.华东地区区域地层表·山东省分册[M].北京:地质出版社,1978:62-64. Regional Stratigraphic Writing Group in Shandong Province.East China Regional Stratigraphic Table:Shandong Province[M].Beijing:Geological Publishing House,1978:62-64. [5] 陈晋鏕,武铁山,张鹏远,等.华北区区域地层[M].武汉:中国地质大学出版社,1997:65-80. Chen J L,Wu T S,Zhang P Y,et al.North China Regional Strati-graphy[M].Wuhan:China University of Geosciences Press,1997:65-80. [6] 丁梦麟,裴静娴.山东蓬莱等地第四纪玄武岩的热发光年龄[J].地质科学,1984(1):103-107. Ding M L,Pei J X.Age dating by thermoluminescence for quaternary basalts in Penglai and other place,Shandong[J].Sci Geol Sin,1984(1):103-107. [7] 陈道公,彭子成.山东新生代火山岩K-Ar年龄和Pb-Sr同位素特征[J].地球化学,1985,12(4):293-303. Chen D G,Peng Z C.K-Ar ages and Pb,Sr isotopic characteristics of Cenozoic volcanic rocks in Shandong,China[J].Geochimica,1985,12(4):293-303. [8] 宋明春,王沛,梁邦启,等.山东省区域地质[M].济南:山东地图出版社,2003:111-127. Song M C,Wang P,Liang B Q,et al.Regional Geology of Shandong Province[M].Ji’nan:Shandong Map Publishing House,2003:111-127. [9] 张增奇,刘明渭,宋志勇,等.山东省岩石地层[M].北京:中国地质大学出版社,1996:180-187. Zhang Z Q,Liu M W,Song Z Y,et al.Stratigraphy (Lithostratic) of Shandong Province[M].Beijing:China University of Geosciences Press,1996:180-187. [10] 山东省地质矿产局.山东省区域地质志[M].北京:地质出版社,1991:142-145. Geology and Mineral Resources Bureau of Shandong Province.Regional Geology of Shandong Province[M].Beijing:Geological Publishing House,1991:142-145. [11] 张增奇,刘书才,杜圣贤,等.山东省地层划分对比厘定意见[J].山东国土资源,2011,27(9):1-9. Zhang Z Q,Liu S C,Du S X,et al.Determination opinions on stratigraphic division and correlation in Shandong Province[J].Shandong Land Resour,2011,27(9):1-9. [12] 金隆裕. 郯庐断裂带中段新生代火山岩的K-Ar年龄值和分期[J].地质论评,1985,31(4):309-315. Jin L Y.K-Ar ages of cenozoic volcanic rocks in the middle segment of the Tancheng-Lujiang fault zone and stages of related volcanic activity[J].Geol Rev,1985,31(4):309-315. [13] 罗丹,陈立辉,曾罡.陆内强碱性火山岩的成因:以山东无棣大山霞石岩为例[J].岩石学报,2009,25(2):311-319. Luo D,Chen L H,Zeng G.Genesis of intra-continental strongly alkaline volcanic rocks:A case study of Dashan nephelinites in Wudi,Shandong Province,North China[J].Acta Petrol Sin,2009,25(2):311-319. [14] Carboni F,Viola G,Aldega L,et al.K-Ar fault gouge dating of Neogene thrusting:The case of the siliciclastic deposits of the Trasimeno Tectonic Wedge (Northern Apennines,Italy)[J].Ital J Geosci,2020,139(2):300-308. [15] Meng J,Lhuillier F,Wang C S,et al.Paleomagnetism of paleocene-maastrichtian (60~70 Ma) lava flows from Tian Shan (Central Asia):Directional analysis and paleointensities[J].J Geophys Res Solid Earth,2020,125(9):e2019JB018631. [16] 张有瑜,陶士振,刘可禹,等.四川盆地须家河组致密砂岩气自生伊利石年龄分布与成藏时代[J].石油学报,2015,36(11):1367-1379. Zhang Y Y,Tao S Z,Liu K Y,et al.Authigenicillite age and hydrocarbon accumulation time in Xujiahe formation sandstone reservoirs (Upper Triassic),Sichuan Basin[J].Acta Petrol Sin,2015,36(11):1367-1379. [17] 杨坤光,梁兴中,谢建磊,等.ESR定年:一种确定脆性断层活动年龄的方法原理与应用[J].地球科学进展,2006,21(4):430-435. Yang K G,Liang X Z,Xie J L,et al.ESR dating,the principle and application of a method to determine active ages of brittle fau-lts[J].Adv Earth Sci,2006,21(4):430-435. [18] 王集宁,蒙永辉,颜堂,等.山东蓬莱史家庄西山火山碎屑岩风化壳元素地球化学特征[J].地球学报,2018,39(4):498-512. Wang J N,Meng Y H,Yan T,et al.The geochemical characteristics of the weathering crust originating from volcaniclastic rock in Xishan of Shijiagou,Penglai,Shandong Province[J].Acta Geosci Sin,2018,39(4):498-512. [19] 李文朋,刘春茹,尹功明,等.高温烘烤作用对石英电子自旋共振信号特征的影响——以大同火山烘烤层为例[J].地球环境学报,2018,9(6):599-606. Li W P,Liu C R,Yin G M,et al.Effect of high temperature baking on characteristics of quartz electron spin resonance (ESR) signal:Taking Datong volcanic baking layer as an example[J].J Earth Environ,2018,9(6):599-606.
2022, Vol. 9 
