Late Paleozoic basins of South America: Insights and progress in the last decade

2021 ◽  
pp. 103150
Author(s):  
Carlos O. Limarino ◽  
Oscar R. López-Gamundí
Keyword(s):  
South America ◽  
Late Paleozoic

Hydrocarbon-Bearing Late Paleozoic Glaciated Basins of Southern and Central South America

1995 ◽  
Author(s):  
N. Eyles ◽  
A. B. França ◽  
G. Gonzalez Bonorino ◽  
C. H. Eyles ◽  
O. López Paulsen
Keyword(s):  
South America ◽  
Late Paleozoic ◽  
Central South

Gondwana and Pangea

2004 ◽  
Author(s):  
John J. W. Rogers ◽  
M. Santosh
Keyword(s):  
North America ◽  
South America ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
Late Paleozoic ◽  
Northern Asia ◽  
Pan African ◽  
History Of ◽  
Single Block ◽  
Orogenic Belts

Pangea, the most recent supercontinent, attained its condition of maximum packing at ~250 Ma. At this time, it consisted of a northern part, Laurasia, and a southern part, Gondwana. Gondwana contained the southern continents—South America, Africa, India, Madagascar, Australia, and Antarctica. It had become a coherent supercontinent at ~500 Ma and accreted to Pangea largely as a single block. Laurasia consisted of the northern continents—North America, Greenland, Europe, and northern Asia. It accreted during the Late Paleozoic and became a supercontinent when fusion of these continental blocks with Gondwana occurred near the end of the Paleozoic. The configuration of Pangea, including Gondwana, can be determined accurately by tracing the patterns of magnetic stripes in the oceans that opened within it (chapters 1 and 9). The history of accretion of Laurasia is also well known, but the development of Gondwana is highly controversial. Gondwana was clearly a single supercontinent by ~500 Ma, but whether it formed by fusion of a few large blocks or the assembly of numerous small blocks is uncertain. Figure 8.1 shows Gondwana divided into East and West parts, but the boundary between them is highly controversial (see below). We start this chapter by investigating the history of Gondwana, using appendix SI to describe detailed histories of orogenic belts of Pan-African age (600–500-Ma). Then we continue with the development of Pangea, including the Paleozoic orogenic belts that led to its development. The next section summarizes the paleomagnetically determined movement of blocks from the accretion of Gondwana until the assembly of Pangea, and the last section discusses the differences between Gondwana and Laurasia in Pangea. The patterns of dispersal and development of modern oceans are left to chapter 9, and the histories of continents following dispersal to chapter 10. By the later part of the 1800s, geologists working in the southern hemisphere realized that the Paleozoic fossils that occurred there were very different from those in the northern hemisphere. They found similar fossils in South America, Africa, Madagascar, India, and Australia, and in 1913 they added Antarctica when identical specimens were found by the Scott expedition.

Late Paleozoic small foraminifers (endothyrids) from South America (Ecuador and Bolivia)

1996 ◽  
Vol 33 (3) ◽  
pp. 452-459 ◽  
Author(s):  
Bernard L. Mamet
Keyword(s):  
South America ◽  
The Arctic ◽  
Late Paleozoic ◽  
South American ◽  
Widespread Occurrence ◽  
Climatic Oscillations ◽  
Arctic Alaska ◽  
Sverdrup Basin ◽  
Middle Carboniferous ◽  
First Time

In the Pangea, small foraminifers (endothyrids) are useful tools for studying the stratigraphy of the late Paleozoic. However, they have been largely ignored in South America. This article reports for the first time their widespread occurrence in the subcontinent and illustrates representatives of 21 families encountered from the Early Pennsylvanian (Bashkirian) to the Early Permian (Artinskian). Fifty-five foraminiferal genera are recognized in three basins of Ecuador–Bolivia and enable us to establish a crude zonation. The fauna is nonendemic, all genera being previously known from Eurasia and North America. There are also a number of taxa derived from the Arctic Realm (Sverdrup Basin and Arctic Alaska). In association with the microflora of green and red algae, the microfauna suggests temperate warm conditions. This indicates that since the Middle Carboniferous, warm climatic oscillations affected the South American part of Gondwana.

scholarly journals Tetrapod tracks in Permo–Triassic eolian beds of southern Brazil (Paraná Basin)

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4764 ◽  
Author(s):  
Heitor Francischini ◽  
Paula Dentzien-Dias ◽  
Spencer G. Lucas ◽  
Cesar L. Schultz
Keyword(s):  
South America ◽  
Cross Section ◽  
Fossil Record ◽  
Late Paleozoic ◽  
Arid Environments ◽  
Southern Brazil ◽  
Triassic Boundary ◽  
Track Record ◽  
First Occurrence ◽  
Eolian Deposits

Tetrapod tracks in eolianites are widespread in the fossil record since the late Paleozoic. Among these ichnofaunas, the ichnogenusChelichnusis the most representative of the Permian tetrapod ichnological record of eolian deposits of Europe, North America and South America, where theChelichnusIchnofacies often occurs. In this contribution, we describe five sets of tracks (one of which is preserved in cross-section), representing the first occurrence ofDicynodontipusandChelichnusin the “Pirambóia Formation” of southern Brazil. This unit represents a humid desert in southwestern Pangea and its lower and upper contacts lead us to consider its age as Lopingian–Induan. The five sets of tracks studied were compared with several ichnotaxa and body fossils with appendicular elements preserved, allowing us to attribute these tracks to dicynodonts and other indeterminate therapsids. Even though the “Pirambóia Formation” track record is sparse and sub-optimally preserved, it is an important key to better understand the occupation of arid environments by tetrapods across the Permo–Triassic boundary.

Late Paleozoic Glaciation: I, South America

1969 ◽  
Vol 80 (6) ◽  
pp. 1007 ◽  
Author(s):  
LAWRENCE A. FRAKES ◽  
JOHN C. CROWELL
Keyword(s):  
South America ◽  
Late Paleozoic
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