Late Paleozoic Pseudoalbaillellid Radiolarians from Southernmost Chile and Their Geological Significance
- Garry D. Mckenzie
Published Online: 21 MAR 2013
Copyright 1987 by the American Geophysical Union.
Gondwana Six: Structure, Tectonics, and Geophysics
How to Cite
Ling, H. Y. and Forsythe, R. D.. (1987) Late Paleozoic Pseudoalbaillellid Radiolarians from Southernmost Chile and Their Geological Significance, in Gondwana Six: Structure, Tectonics, and Geophysics (ed G. D. Mckenzie), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM040p0253
- Published Online: 21 MAR 2013
- Published Print: 1 JAN 1987
Print ISBN: 9780875900643
Online ISBN: 9781118664483
- Gondwana Geology)—Congresses;
Details of late Paleozoic (Late Carboniferous and Early Permian) radiolarians from Isla Madre de Dios and Isla Regalada of southernmost Chile are presented for the first time, and their faunal compositions compared with those of the published records. One new species, Pseudo-albaillella chilensis, and one new subspecies, Ps. u-forma reflexa are proposed. Ages suggested by these findings, having older (Late Carboniferous) age limits for the Madre de Dios Archipelago and younger (Early Permian) for Regalada Island, support a S to SE younging pattern for the timing of accretion and the material accreted for the forearc terrane. The trend may be continued into the Antarctic Peninsula, where even younger Triassic radiolarian chert has been reported.