3D chemometric model simulating the Acitheca polymorpha frond: implications for reconstructing Carboniferous ferns (Marattiales, Canada)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00228745%3A_____%2F21%3AN0000012" target="_blank" >RIV/00228745:_____/21:N0000012 - isvavai.cz</a>

Výsledek na webu

<a href="https://folia.zcm.cz/images/pdf/Folia-55.2021-clanek_1-21" target="_blank" >https://folia.zcm.cz/images/pdf/Folia-55.2021-clanek_1-21</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/fbgp-2021-0001" target="_blank" >10.2478/fbgp-2021-0001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

3D chemometric model simulating the Acitheca polymorpha frond: implications for reconstructing Carboniferous ferns (Marattiales, Canada)

Popis výsledku v původním jazyce

Reported are results of an initial approximate imitation of a Carboniferous fern frond, i.e., marattialean Acitheca polymorpha (Schimper), Middle Pennsylvanian Sydney Coalfield, Canada. The simulation experiment is based on the analysis of 14 infrared spectra obtained by means of Fourier Transform Infrared spectroscopy from four detached fragments of sterile polymorphic penultimate-pinna compressions. The calculated relative, semi-quantitative, chemical data from the infrared spectra are the input for principal component analysis deriving a 3D (three-dimensional) chemometric model. To interpret it, the four specimens are placed in hypothetical-frond positions simulating a tripinnate frond, based on diminishing penultimate-rachial widths from 1-mm (distal) to 10-mm (proximal). Hypothetical conclusions include position-dependent chemistries, specifically that of opposing trends of aromaticity vs. aliphaticity in pinnules-rachises. This, in turn, would suggest potential for (i) fern-frond reconstruction, and (ii) for determination of a most likely frond position of fragmentary specimens by “chemical classification”; the predictive aspect. However, further experimental refinement is necessary particularly based on larger frond segments to confirm or disconfirm the overall hypothetical results.

Název v anglickém jazyce

3D chemometric model simulating the Acitheca polymorpha frond: implications for reconstructing Carboniferous ferns (Marattiales, Canada)

Popis výsledku anglicky

Reported are results of an initial approximate imitation of a Carboniferous fern frond, i.e., marattialean Acitheca polymorpha (Schimper), Middle Pennsylvanian Sydney Coalfield, Canada. The simulation experiment is based on the analysis of 14 infrared spectra obtained by means of Fourier Transform Infrared spectroscopy from four detached fragments of sterile polymorphic penultimate-pinna compressions. The calculated relative, semi-quantitative, chemical data from the infrared spectra are the input for principal component analysis deriving a 3D (three-dimensional) chemometric model. To interpret it, the four specimens are placed in hypothetical-frond positions simulating a tripinnate frond, based on diminishing penultimate-rachial widths from 1-mm (distal) to 10-mm (proximal). Hypothetical conclusions include position-dependent chemistries, specifically that of opposing trends of aromaticity vs. aliphaticity in pinnules-rachises. This, in turn, would suggest potential for (i) fern-frond reconstruction, and (ii) for determination of a most likely frond position of fragmentary specimens by “chemical classification”; the predictive aspect. However, further experimental refinement is necessary particularly based on larger frond segments to confirm or disconfirm the overall hypothetical results.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10506 - Paleontology

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Folia Musei rerum naturalium Bohemiae occidentalis - Geologica et Paleobiologica

ISSN

1805-2371

e-ISSN

—

Svazek periodika

55

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

21

Strana od-do

1-21

Kód UT WoS článku

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EID výsledku v databázi Scopus

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