Magnetization carriers of grey to red deep-water limestones in the GSSP of the Givetian-Frasnian boundary (Puech de la Suque, France): signals influenced by moderate diagenetic overprinting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33157354" target="_blank" >RIV/61989592:15310/15:33157354 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1144/SP414.15" target="_blank" >http://dx.doi.org/10.1144/SP414.15</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1144/SP414.15" target="_blank" >10.1144/SP414.15</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetization carriers of grey to red deep-water limestones in the GSSP of the Givetian-Frasnian boundary (Puech de la Suque, France): signals influenced by moderate diagenetic overprinting

Popis výsledku v původním jazyce

Limestones at the Puech de la Suque Global Boundary Stratotype Section and Point (GSSP) of the Givetian-Frasnian boundary show a drastic change towards much higher magnetic susceptibility values in the Givetian rocks. Different rock magnetic parameters indicate that ferromagnetic minerals are the main controlling factor. The ferromagnetic fraction is composed of low-(magnetite-type) and high-coercivity (hematite and goethite) phases. Confirmed by the spectral reflectance, high coercivity minerals are fluctuating along the section with a higher abundance in the basal Frasnian. These phases may be of secondary origin and produced during burial stage. The magnetite-type phase contains two different grain-size populations. The identified that Stable Single-domain/Superparamagnetic (SSD/SP) particles are of diagenetic origin and their amount decreases slightly upwards. A second group of magnetite grains correspond to coarse-grained particles identified using the squareness v. coercive force

Název v anglickém jazyce

Magnetization carriers of grey to red deep-water limestones in the GSSP of the Givetian-Frasnian boundary (Puech de la Suque, France): signals influenced by moderate diagenetic overprinting

Popis výsledku anglicky

Limestones at the Puech de la Suque Global Boundary Stratotype Section and Point (GSSP) of the Givetian-Frasnian boundary show a drastic change towards much higher magnetic susceptibility values in the Givetian rocks. Different rock magnetic parameters indicate that ferromagnetic minerals are the main controlling factor. The ferromagnetic fraction is composed of low-(magnetite-type) and high-coercivity (hematite and goethite) phases. Confirmed by the spectral reflectance, high coercivity minerals are fluctuating along the section with a higher abundance in the basal Frasnian. These phases may be of secondary origin and produced during burial stage. The magnetite-type phase contains two different grain-size populations. The identified that Stable Single-domain/Superparamagnetic (SSD/SP) particles are of diagenetic origin and their amount decreases slightly upwards. A second group of magnetite grains correspond to coarse-grained particles identified using the squareness v. coercive force

Druh

C - Kapitola v odborné knize

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Magnetic susceptibility application: A window onto ancient environments and climatic variations

ISBN

978-1-86239-721-7

Počet stran výsledku

24

Strana od-do

157-180

Počet stran knihy

283

Název nakladatele

Geological Society Publishing House

Místo vydání

Avon, United Kingdom

Kód UT WoS kapitoly

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