High-resolution carbon isotope records of the Aptian to Lower Albian from SE France and the Mazagan Plateau (DSDP Site 545): a stratigraphic tool for paleoceanographic and paleobiologic reconstruction

Planktic Foraminiferal Species Turnover Across Deep-Sea Aptian/ Albian Boundary Sections

“…Studies of potential Aptian/Albian GSSPs in the Vocontian Basin (southeast France) have provided an improved integrated framework for correlation of a number of macro-and microfossil biostratigraphic datums relative to various chemostratigraphic data (Kennedy and others, 2000;Herrle and Mutterlose, 2003;Herrle and others, 2004;Friedrich and others, 2005). The most widely recognized microfossil events associated with the AABI are the LO of the calcareous nannofossil Praediscosphaera columnata s. str.…”

“…Detailed sedimentologic, macrofaunal, microfossil, and stable-isotopic studies have been published on the Col de Pré-Guittard section in southeast France to determine its suitability for placing the GSSP for the base of the Albian Stage (e.g., Bréhéret and others, 1986;Bralower and others, 1993;Hart and others, 1996;Bréhéret, 1997;Kennedy and others, 2000;Hancock, 2001;Herrle and Mutterlose, 2003;Herrle and others, 2004). The location information, lithologic succession, and biostratigraphy were summarized by Kennedy and others (2000).…”

Reconciliation of marine and terrestrial carbon isotope excursions based on changing atmospheric CO2 levels

“…G lobally correlated, negative excursions in carbon isotope (d 13 C) values measured in marine and terrestrial substrates throughout the Phanerozoic indicate episodic, massive additions of isotopically depleted carbon to the oceanatmosphere system [1][2][3][4][5][6][7][8][9][10] . These events not only changed the carbon isotope composition of atmospheric carbon dioxide (d 13 C CO2 ), but also raised pCO 2 concentrations (for example, ref .…”

Diagenetic significance of carbon, oxygen and strontium isotopic compositions in the Aptian-Albian Mural Formation in Cerro Pimas area, northern Sonora, Mexico.

“…limestones collected from the Cerro Pimas section. Segments C8, C12 and C14 after Bralower et al (1999) and segments Al1, Al2 and Al5 after Herrle et al (2004). The gray interval indicates the position of the OAE 1b.…”

“…Major discrepancies exist in the chronostratigraphic correlation of the carbon isotope record in Mexico (Scholle and Arthur, 1980) and Europe (Weissert and Lini, 1991;Leckie et al, 2002;Herrle et al, 2004). Most of the information about the mid-Cretaceous global change derives from the investigations of the Tethyan sections exposed in France and Italy (Arthur and Premoli Silva, 1982;Premoli Silva et al, 1989;Coccioni et al, 1992;Herrle et al, 2004). Very little information on the mid-Cretaceous events is available from Mexico (Scholle and Arthur, 1980;Bralower et al, 1999).…”