English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A BS TR A CT The Enchova paleocanyon, locat ed at the southeastern port ion of Campos Basin , has had its sedimentary history investigated in detail through biostratigraphi c 'analysis of calcareous nann ofo ssil contents, electrical logs, and tracing the most significant seismic features . Integration of these data led us to conclude that the paleocanyon was carved during a mea ningful eros ive episode by the Late Oli gocen e, afte r deposi tion of the Sphenolimus aperoensis Zo ne (N·540) approxi mate ly 24 Ma ago . Th e terrigenous sedi ments of the Helicoponthosphaera recta Zo ne (N-5 45) of Ear ly Miocene age , filled up the paleocan ycn during a relati vely short -lived event o f I Ma, geolog ically speaking . The terti ary section carved by the paleocanyon, of Middle-Eocene/Late Oligoce ne age , shows two olller eros ive episodes: one at the top of the Micrantholithus procerus Zone (N460) of Late Eoce ne age , and another at the uppermost Rettculof enestra umbiJica Zo ne (N-5 1O) Ear ly Oligocene in age . Prob ably, the Early Oli gocene episode gave rise to a paleocanyon , this preceding that of Enchc va. The obta ined data allowed the construction of a qualitati ve curve o f sea leve l fluctuations for the Oli gocene and Early Miocene. Comparison with Vail 's global curve of eustatic variations evidence some simila rities as well as some contrasts .

The Enchova Paleocanyon (Campos Basin-Brazil): its Oligocene-Miocene history based on calcareous nannoplankton stratigraphic and seismostratigraphy