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Definition of biostratigraphy in English: biostratigraphynoun ˌbʌɪə(ʊ)strəˈtɪɡrəfiˌbīōstrəˈtiɡrəfē mass nounThe branch of stratigraphy concerned with fossils and their use in dating rock formations. 生物地层学 Example sentencesExamples - The geologic age of the upper member of the Mal Paso Formation is constrained to the late Albian-early Cenomanian based on its stratigraphic position and biostratigraphy.
- Keith Young published over 100 papers and contributed to numerous symposia and field guides dealing with Mesozoic biostratigraphy.
- This is followed by a brief discussion of the methods for division of the stratigraphic record and geological time, with reviews of litho- and biostratigraphy, radiometric dating, magneto- and chemo-stratigraphy.
- The new age for the Botany Bay Group provides an important tie point for Jurassic floras in the Southern Hemisphere that will allow a more robust biostratigraphy to be constructed.
- This site is dated by biostratigraphy to the early Pleistocene, with an estimated age of 1.3 + or - 0.1 Ma.
- The bulk of the collection is the result of research on biostratigraphy, taxonomy, and biology of protists and prokaryotes at U.C. Berkeley.
- The research integrates seismic interpretation, sedimentology and biostratigraphy from previously collected seismic data and piston cores.
- These chapters are required reading for anyone interested in how rigorous biostratigraphy should be done with any fossil group, not just mammals.
- Since the presence of these cells would be tied directly to important geochemical events, they would make ideal organisms for biostratigraphy.
- The papers that follow concentrate on the integration of high-resolution geochemical records with detailed biostratigraphy.
- The San Juan Member is late Oligocene based upon biostratigraphy and radiometric dating.
- During the prolonged debate over the boundary problem, further results on integrated magnetostratigraphy and ammonoid biostratigraphy were published, and additional palaeomagnetic measurements are in progress.
- We agree with Loydell that much of this testing will depend on the development of a more refined biostratigraphy and better correlations between sections worldwide, and we have common ground in working towards those ends.
- In many depositional basins, biostratigraphy is a key element in developing play concepts and planning for production wells.
- The latter itself is too young to denote the original age of the tuff, on the basis of its Early Cambrian biostratigraphy and independent ages for the Early Cambrian elsewhere.
- This should be achieved by independent stratigraphic methods such as magnetostratigraphy or, where possible, marine biostratigraphy.
- These are also the areas in which the traditional use of invertebrate macrofossils in biostratigraphy and paleogeography offers the potential for resolving major geological debates.
- It explains the facts of biodiversity, biostratigraphy, comparative anatomy, and so forth.
- This is the basic unit of biostratigraphy in which fossils are used in the correlation of rock units.
- Other remarks pertinent to its biostratigraphy appear in various works.
Derivativesnoun The biostratigrapher is part of a team of geoscientists who follow the drilling from minute to minute. Example sentencesExamples - Most of us who have worked with conodonts have done so as biostratigraphers and we have thus paid scant attention to the suprageneric classification of the species reconstructed in our studies.
- Those of us employed as biostratigraphers in the oil and gas industry are routinely asked to provide results with much finer stratigraphic resolution than what is possible with conventional techniques.
- An informal technical alliance of industry biostratigraphers from more than ten companies advised and helped Unocal on conceptual development of IPS into a commercial package for general industry use.
adjective ˌbʌɪə(ʊ)ˌstratɪˈɡrafɪk The seismic horizons have been calibrated using biostratigraphic and lithological data from exploration boreholes in the UK and Faroes sectors. Example sentencesExamples - Advances in biostratigraphic precision and in isotopic age-dating now permit much more precise definition of the deformation episodes, with the result that many distinct phases are recognized.
- During the 1990s, combined investigations of Western and Asian teams on many of the more important Asian sections added a wealth of new stratigraphic and biostratigraphic information.
- Surely, these are not the most adequate sources for precise biostratigraphic data neglecting other results attained by many authors recently and long ago.
- However, the lack of consistently good quality biostratigraphic data makes the accurate picking of biozone tops and bases uncertain in most North Sea well sections.
- The timing of the deformation is critical to each of these models but so far isotopic ages and biostratigraphic evidence have been equivocal.
adjective ˌbʌɪə(ʊ)ˌstratɪˈɡrafɪk(ə)l It is increasingly clear that major problems in testing the oceanic model rest in imprecisions of biostratigraphical correlation, particularly between different facies. Example sentencesExamples - The local biostratigraphical ranges derived from the various sections have been combined into global ranges through graphic correlation, following the process described in more detail by MacLeod and Shaw.
- Their position in the sections was considered as equivalent, judging from biostratigraphical data.
- Throughout this paper the biozones are denoted using italics because they are considered to be biostratigraphical units, not chronostratigraphical or geochronological units as implied by some Jurassic workers.
- However, short stratigraphical gaps and a locally developed cleavage reduce the amount of biostratigraphical information available from certain intervals.
- Assigning numerical ages to biostratigraphical datum levels worldwide is a questionable practice because first and last appearances of species are often diachronous across latitudes.
adverb ˌbʌɪə(ʊ)ˌstratɪˈɡrafɪk(ə)li One solution to this apparent contradiction is to make the reasonable suggestion that average sampling rates for marine animals as a whole greatly underestimate the sampling rates for the biostratigraphically useful groups. Example sentencesExamples - In all cases, biostratigraphically well-dated reference sections, against which the relevant geochemical data have been calibrated, are required in the first instance.
- They have been widely used biostratigraphically in Jurassic to Pleistocene rock sequences.
- Neither their taxonomy nor their nomenclature is settled, they are underutilized biostratigraphically and paleoenvironmentally, and evolutionary relationships within the group are largely unexplored.
- The presence of these plant remains in a regionally and globally correlatable marine assemblage aids correlation of continental strata with established, biostratigraphically time equivalent, marine strata.
Definition of biostratigraphy in US English: biostratigraphynounˌbīōstrəˈtiɡrəfē The branch of stratigraphy concerned with fossils and their use in dating rock formations. 生物地层学 Example sentencesExamples - The latter itself is too young to denote the original age of the tuff, on the basis of its Early Cambrian biostratigraphy and independent ages for the Early Cambrian elsewhere.
- These chapters are required reading for anyone interested in how rigorous biostratigraphy should be done with any fossil group, not just mammals.
- The bulk of the collection is the result of research on biostratigraphy, taxonomy, and biology of protists and prokaryotes at U.C. Berkeley.
- The geologic age of the upper member of the Mal Paso Formation is constrained to the late Albian-early Cenomanian based on its stratigraphic position and biostratigraphy.
- The papers that follow concentrate on the integration of high-resolution geochemical records with detailed biostratigraphy.
- The San Juan Member is late Oligocene based upon biostratigraphy and radiometric dating.
- This should be achieved by independent stratigraphic methods such as magnetostratigraphy or, where possible, marine biostratigraphy.
- These are also the areas in which the traditional use of invertebrate macrofossils in biostratigraphy and paleogeography offers the potential for resolving major geological debates.
- Keith Young published over 100 papers and contributed to numerous symposia and field guides dealing with Mesozoic biostratigraphy.
- Since the presence of these cells would be tied directly to important geochemical events, they would make ideal organisms for biostratigraphy.
- This site is dated by biostratigraphy to the early Pleistocene, with an estimated age of 1.3 + or - 0.1 Ma.
- We agree with Loydell that much of this testing will depend on the development of a more refined biostratigraphy and better correlations between sections worldwide, and we have common ground in working towards those ends.
- The new age for the Botany Bay Group provides an important tie point for Jurassic floras in the Southern Hemisphere that will allow a more robust biostratigraphy to be constructed.
- This is followed by a brief discussion of the methods for division of the stratigraphic record and geological time, with reviews of litho- and biostratigraphy, radiometric dating, magneto- and chemo-stratigraphy.
- During the prolonged debate over the boundary problem, further results on integrated magnetostratigraphy and ammonoid biostratigraphy were published, and additional palaeomagnetic measurements are in progress.
- This is the basic unit of biostratigraphy in which fossils are used in the correlation of rock units.
- The research integrates seismic interpretation, sedimentology and biostratigraphy from previously collected seismic data and piston cores.
- Other remarks pertinent to its biostratigraphy appear in various works.
- It explains the facts of biodiversity, biostratigraphy, comparative anatomy, and so forth.
- In many depositional basins, biostratigraphy is a key element in developing play concepts and planning for production wells.
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