| Table of contents Earth Sci. Res. J. vol.23 no.2 Bogotá Apr./June 2019 Original Articles | | | | · Fast estimation of earthquake arrival azimuth using a single seismological station and machine learning techniques Ochoa Gutiérrez, Luis Hernán; Vargas Jiménez, Carlos Alberto; Niño Vásquez, Luis Fernando
| | | | · Effects of Sediment Thickness upon Seismic Amplification in the Urban Area of Chiapa de Corzo, Chiapas, Mexico Moreno Ceballo, Roberto; González Herrera, Raúl; Paz Tenorio, Jorge Antonio; Aguilar Carboney, Jorge Alfredo; Del Carpio Penagos, Carlos Uriel
| | | | · Soft-sediment Deformation Structures and Sand Body Architecture in the Chang 6 Oil Member of the Upper Triassic Yanchang Formation, Southwestern Ordos Basin, China Liang, Qingshao; Tian, Jingchun; Wang, Feng; Zhang, Xiang
| | | | · Analysis of the Ordovician Carbonate Hydrothermal Process in Tadong Area, Xinjiang, China Wancang, Tan; Yuanlin, Meng; Zihui, Feng; Qi'an, Meng; Qiang, Li; Xiandong, Wang; Guorong, Li; Yaguang, Li
| | | | · Mineralogical features and petrogenetic significance of the clinopyroxene and hornblende of the Wuhaolai mafic complex in northern North China Craton, Inner Mongolia Chen, Wang; Jianchao, Liu; Haidong, Zhang; Jiakun, Ge; Zhixuan, Xi; Haoran, Wang
| | | | · Crustal Velocity Models Retrieved from Surface Wave Dispersion Data for Gujarat Region, Western Peninsular India Joshi, Vishwa
| | | | · The quantitative prediction of tectonic fractures of Longmaxi formation in Dingshan area, southeastern Sichuan Basin Jiatong, Xie; Qirong, Qin; Cunhui, Fan; Dongfeng, Hu; Hu, Li
| | | | · Optimization of Fusion Method for GF-2 Satellite Remote Sensing Images based on the Classification Effect Jintong, Ren; Wunian, Yang; Xin, Yang; Xiaoyu, Deng; He, Zhao; Fang, Wang; Lei, Wang
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