THE FURNAS/PONTA GROSSA CONTACT AND THE AGE OF THE LOWERMOST PONTA GROSSA FORMATION IN THE APUCARANA SUB-BASIN (PARANA BASIN, BRAZIL): INTEGRATED PALYNOLOGICAL AGE DETERMINATION

被引：26

作者：

Grahn, Yngve ^{[1
]}

Mauller, Paula Mendlowicz ^{[1
]}

Breuer, Pierre ^{[2
]}

Bosetti, Elvio Pinto ^{[3
]}

Bergamaschi, Sergio ^{[1
]}

Pereira, Egberto ^{[1
]}

机构：

[1] Univ Estado Rio De Janeiro, Fac Geol, BR-20550013 Rio De Janeiro, Brazil

[2] Saudi Aramco, Geol Tech Serv Div, Dhahran 31311, Saudi Arabia

[3] Univ Estadual Ponta Grossa, Lab Paleontol, BR-84070540 Ponta Grossa, PR, Brazil

来源：

REVISTA BRASILEIRA DE PALEONTOLOGIA | 2010年 / 13卷 / 02期

关键词：

Furnas/Ponta Grossa contact; palynology; Early Devonian; Parana Basin; CHITINOZOAN BIOZONES; SOLIMOES BASIN; SOUTH BRAZIL;

D O I：

10.4072/rbp.2010.2.02

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

The Furnas/Ponta Grossa Formation contact was until recently considered gradational or abrupt and of a Lochkovian to Pragian age in the Apucarana Sub-basin (Parana Basin, south Brazil). Based on sedimentology and palynomorph evidence a hiatus has been revealed between the Furnas Formation and the overlying Ponta Grossa Formation. The boundary between the topmost Furnas sandstones and the lowermost Ponta Grossa fine-grained sandstones constitutes a transgressive ravinement surface generated during a latest Pragian - early Emsian transgression. The hiatus corresponds to a maximum of ca. 4 Ma. A similar gap is also present in the Alto Garcas Sub-basin.

引用

页码：89 / 102

页数：14

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