Pb isotopes define basement domains of the Altiplano, central Andes

Year:

1995

Type of Publication:

Artikel

Autoren:

Aitcheson, S. J.; Harmon, R. S.; Moorbath, S.; Schneider, A.; Soler, P.; Soria-Escalante, E.; Steele, G.; Swainbank, I.; Wörner, Gerhard

Journal:

Geology

Volume:

23

Nummer:

6

Seiten:

555-558

BibTex:

@article{Aitcheson01061995, author = "S. J. Aitcheson and R. S. Harmon and S. Moorbath and A. Schneider and P. Soler and E. Soria-Escalante and G. Steele and I. Swainbank and Gerhard W{\"o}rner", abstract = "Detailed Pb isotopic maps of the central Andes, based on 345 (163 previously published, 182 new) analyses of ores, volcanic rocks, and their host rocks, elucidate the gross structure of the basement and reveal that several isotopically distinct basement domains are juxtaposed in this region. The data clearly show that most of the Pb in central Andean igneous and ore samples is derived from the local basement, including Pb in ore deposits of the Bolivian tin belt. Some of the isotopic domain boundaries correspond to geologic structures and the residual gravity pattern, as well as to metallogenic boundaries such as the western edge of the Bolivian tin belt.", doi = "10.1130/0091-7613(1995)023{\&}lt;0555:PIDBDO{\&}gt;2.3.CO;2", journal = "Geology", number = "6", pages = "555-558", title = "{P}b isotopes define basement domains of the {A}ltiplano, central {A}ndes", url = "http://geology.gsapubs.org/content/23/6/555.abstract", volume = "23", year = "1995", }

Kurzzusammenfassung:

Detailed Pb isotopic maps of the central Andes, based on 345 (163 previously published, 182 new) analyses of ores, volcanic rocks, and their host rocks, elucidate the gross structure of the basement and reveal that several isotopically distinct basement domains are juxtaposed in this region. The data clearly show that most of the Pb in central Andean igneous and ore samples is derived from the local basement, including Pb in ore deposits of the Bolivian tin belt. Some of the isotopic domain boundaries correspond to geologic structures and the residual gravity pattern, as well as to metallogenic boundaries such as the western edge of the Bolivian tin belt.