| Table of contents Bol. cienc. tierra no.48 Medellín July/Dec. 2020 Articles | | | | · Quality assessment in the supply chain of copper mining in Chile Gahona-Flores, Orlando
| | | | · Technical analysis on the causes of the mass movement occurred in "Las Nieves" Quarry, city of Copacabana Giraldo-Ramírez, Wilmer Enrique; Aristizábal-Arboleda, María Fernanda
| | | | · Sequential stratigraphy of the Guajira Lower Sub-basin Castillo-López, Luis Antonio; Kazmierczack, Thais de Souza
| | | | · Site characterization using geophysical and geotechnical Prospecting. Case study main road North Central Trunk (National Route 55) at Km 68 + 500 in the Municipality of Pamplona, North of Santander, Colombia Moya-Gutiérrez, Anyelo José; Torres-Peña, Jairo Alberto; Contreras-Martínez, Manuel
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