Gustav Steinmann

Johann Heinrich Conrad Gottfried Gustav Steinmann (9 April 1856 – 7 October 1929) was a German geologist and paleontologist. He performed various studies in the Ural Mountains, North America, South America, the Caucasus and the Alps. Steinmann had a large number of scientific publications. He made contributions to the Theory of Evolution and to the study of the structural geology and orogeny of the Andes.[1]

Gustav Steinmann
Born(1856-04-09)9 April 1856
Braunschweig, Duchy of Brunswick
Died7 October 1929(1929-10-07) (aged 73)
Bonn, Germany
NationalityGerman
CitizenshipGermany
Alma materUniversity of Munich
Known forSteinmann's trinity, chronology of the Andean orogeny
Spouse(s)Adelheid Holtzmann (1866–1925)
Children1 son Gustav
Scientific career
FieldsGeology, paleontology
InstitutionsUniversity of Strassburg
University of Jena
University of Freiburg
University of Bonn

In the Alps and Apennines Steinmann defined what later became known as "Steinmann's Trinity," the occurrence of serpentine, pillow lava, and chert. The recognition of Steinmann's Trinity served years later to build up the theory around seafloor spreading and plate tectonics.[2] Steinmann himself interpreted ophiolites (the Trinity) using the geosyncline concept.[3] His studies of ophiolites in the Apennines paved the way for the discovery of allochthonous nappes in the Alps and Apennines.[4]

South America

Steinmann redefined the Navidad Formation in 1895, then called Piso Navidad, described by Charles Darwin by giving it a Lower Tertiary age and spanning much of south-central Chile. In 1934 Juan Brüggen separated Piso Concepción from Steinmann's Piso Navidad after showing there was a discordance between them.[5]

In Peru Steinmann studied the geology of Cerro de Pasco[2] and of the Marañón fold and thrust belt[6] among other things. In a work published posthumously by his students in 1929 Steinmann defined the main phases of the Andean orogeny in Peru.[6] He theorized that the apparent lack of ophiolites in the Peruvian Andes within geosyncline theory; it was either indebted to the Andes being preceded by a shallow geosyncline or the Andes representing just the margin of a geosyncline.[3]

References
  1. K. A. G. (1926). "Steinmann". Nordisk familjebok (in Swedish). 38. Supplement. (Uggleupplagan ed.). p. 501.
  2. Seibold, Eugen; Seibold, Ilse (2010), "Gustav Steinmann (1856–1929): Ein deutscher Ordinarius der Kaiserzeit", International Journal of Earth Sciences (in German), 99 (Supplement 1): 3–15, Bibcode:2010IJEaS..99....3S, doi:10.1007/s00531-010-0561-y
  3. Şengör, A.M.C.; Natal'in, B.A. (2004). "Phanerozoic Analogues of Archean Oceanic Basement Fragments". In Kusky, T.M. (ed.). Precambrian Ophiolites and Related Rocks. Developments in Precambrian Geology. 13. p. 682. ISBN 0-444-50923-2.
  4. Yildirim, Dilek; Furnes, Harald (2011). "Ophiolite genesis and global tectonics: Geochemical and tectonic fingerprinting of ancient oceanic lithosphere". Geological Society of America Bulletin. 123 (3/4): 387–411. Bibcode:2011GSAB..123..387D. doi:10.1130/B30446.1.
  5. Encinas, Alfonso; Le Roux, Jacobus P.; Buatois, Luis A.; Nielsen, Sven, N.; Finger, Kenneth L.; Fourtanier, Elizabeth; Lavenu, Alain (2006), "New stratigrafic scheme for the Mio-Pliocene marine deposits of the Navidad area (33º00'-34º30'S), central Chile", Revista Geológica de Chile, 33 (2): 221–246, doi:10.4067/S0716-02082006000200002
  6. Pfiffner, Adrian O.; Gonzalez, Laura (2013). "Mesozoic–Cenozoic Evolution of the Western Margin of South America: Case Study of the Peruvian Andes". Geosciences. 3 (2): 262–310. Bibcode:2013Geosc...3..262P. CiteSeerX 10.1.1.361.3591. doi:10.3390/geosciences3020262.
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