Results 71 to 80 of about 3,163 (215)

GIVETIAN–FRASNIAN BOUNDARY CONODONTS FROM KERMAN PROVINCE, CENTRAL IRAN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2013
The Middle - Late Devonian boundary is investigated based on twenty-two conodont species and subspecies from three sections in the north and west of Kerman, southeastern central Iran.
HOSSEIN GHOLAMALIAN   +4 more
doaj   +1 more source

The varved succession of Crawford Lake, Milton, Ontario, Canada as a candidate Global boundary Stratotype Section and Point for the Anthropocene series. [PDF]

open access: yesAnthropocene Rev, 2023
McCarthy FM   +28 more
europepmc   +1 more source

About the stratigraphic position of the Lower Aptian Roloboceras hambrovi (Ammonoidea) level

open access: yesCarnets de Géologie, 2008
In the stratotype of the Lower Aptian substage the position of the assemblage that includes Roloboceras spp. and Megatyloceras spp. has been clearly established as being in the middle part of the upper Bedoulian. Some authors have erected this horizon as
Conte Gabriel   +3 more
doaj  

Calcareous plankton biostratigraphy of the Serravallian (middle Miocene) stratotype section (Piedmont Tertiary basin NW Italy)

open access: yes, 1997
A high-resolution study of the historical Serravallian (Middle Miocene) stratotype section located in the Serravalle Scrivia area (Tertiary Piedmont Basin, NW Italy) based on calcareous plankton content (calcareous nannofossils and planktonic ...
RIO, DOMENICO   +4 more
core  

The Cabo Mondego section as a possible Bajocian boundary stratotype [PDF]

open access: yes, 1990
The Cabo Mondego section situated on the Atlantic coast, 160 km north of Lisbon, presents characteristics of a good boundary stratotype section (G.S.S.P.).
Rocha, Rogério B   +6 more
core   +1 more source

Designation Of The Standard Stratotype And Age Of Nsukka Formation Of Anambra Basin, Southeastern Nigeria

open access: yes, 2008
The type locality of Nsukka Formation was designated north of Nsukka in an area along Nadu River, without any formal description of the type section. Field mapping of the type locality was undertaken with the intention to formally define the type section.
Nwajide, C S   +7 more
core   +1 more source

CALCAREOUS PLANKTON HIGH RESOLUTION BIO-MAGNETOSTRATIGRAPHY FOR THE LANGHIAN OF THE MEDITERRANEAN AREA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2008
High-resolution quantitative and qualitative analyses of the planktonic foraminifer and calcareous nannofossil content have been carried out on three Middle Miocene sections, from the Mediterranean area. Such sections (Cretaccio section, Tremiti Islands,
AGATA DI STEFANO   +9 more
doaj   +1 more source

Stratotype Hettangien

open access: yes, 2012
Le stratotype de l’Hettangien est une référence géologique internationale. Il est de ce fait aussi la célébrité d’Hettange-Grande, localité de Moselle où il a été défini.
x
  +1 more

core  

Early Aptian δ¹³C and manganese anomalies from the historical Cassis-La Bédoule stratotype sections (S.E. France): relationship with a methane hydrate dissociation event and stratigraphic implications

open access: yesCarnets de Géologie, 2005
Comparison of oxygen and carbon isotope and manganese evolution curves in bulk carbonate from the historical Bedoulian stratotype (Cassis-La Bédoule area, Provence, France) reveals an important geochemical event (negative δ¹³C and high Mn content ...
Tronchetti Guy   +7 more
doaj  

THE GELASIAN STAGE: A PROPOSAL OF A NEW CHRONOSTRATIGRAPHIC UNIT OF THE PLIOCENE SERIES

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
A new Stage, the Gelasian, is proposed as the third upper subdivision of the Pliocene Series. The GSSP of the base of the Gelasian Stage and of the Middle Pliocene-Upper Pliocene boundary is coincident with a "sapropel" level which outcrops in the Monte ...
DOMENICO RIO   +2 more
doaj   +1 more source

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