The duration of periods of non-deposition remains mostly beyond
biostratigraphic resolution, but at least some gaps can be traced by quantitative microfossil data, as shown by Tammekand et al.
However, there has not been a tradition of comparing the Spanish and Portuguese faunal and stratigraphic settings, in order to set up an integrated
biostratigraphic model with obvious implications on further palaeogeographic interpretations.
Based on the detailed
biostratigraphic studies (100 thin sections), 13 age diagnostic species of larger foraminifers are recorded.
Although a satisfactory age-depth model was developed with the help of known ages of
biostratigraphic boundaries for Lake Kuranovas (Fig.
It is important to remark that only those important
biostratigraphic conodonts around the nothoperbonus Zone are discussed (briefly) and/or illustrated (Figs.
Data on the magnetic susceptibility and natural gamma radiation of sediments (in cooperation with IGCP 580) will be used as auxiliary means for high-resolution correlation of
biostratigraphic well-documented units belonging to different bathymetric sequences within the tropical belt (Laurussia, Siberia, peri-Gondwana and N- Gondwana).
This unit corresponds to the lower carbonate unit of the Muschelkalk facies, dated as late Anisian by
biostratigraphic studies (See Marzo, 1980; Calvet and Marzo, 1994; Marquez-Aliaga et al.
It comprises over 1,300 new geochemical,
biostratigraphic and sedimentological analyses of over 800 individual outcrop, well, corehole and seep samples collected from Jamaica.
With headquarters and a dedicated laboratory in Conwy and satellite offices in St Albans and Houston, USA, the company has 50 employees and specialises in the provision of high-resolution, quantitative reservoir scale studies and wellsite (real-time)
biostratigraphic services.
A geologic and
biostratigraphic framework for Miocene sediments near Khaur village, Northern Pakistan.
The Waagen's
biostratigraphic subdivisions (1895) as modified by Kummel and Tei cherrt Team was adoped by all subsequent researchers.
The
biostratigraphic dating of rocks and various geological--geochemical events is an important but also complicated task when dates received from different fossil groups are not in good harmony.
