Identifying plutons associated with long-lived volcanism by thermal modeling of contact metamorphic aureoles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F23%3A00576217" target="_blank" >RIV/67985530:_____/23:00576217 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.geoscienceworld.org/gsa/geology/article/51/12/1173/628438/Identifying-plutons-associated-with-long-lived" target="_blank" >https://pubs.geoscienceworld.org/gsa/geology/article/51/12/1173/628438/Identifying-plutons-associated-with-long-lived</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1130/G51563.1" target="_blank" >10.1130/G51563.1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Identifying plutons associated with long-lived volcanism by thermal modeling of contact metamorphic aureoles

Popis výsledku v původním jazyce

A compilation of the thicknesses of contact metamorphic aureoles (CMAs) developed around intermediate to felsic plutons shows many CMAs are far broader than expected by commonly used thermal models for pluton emplacement. Shortfalls in the amount of heat potentially provided based on pluton size, compared to that needed to form the observed CMA, can be accounted for if some hot magma has been lost by volcanic eruption after passing through the pluton domain and replaced by new hot magma. A high ambient temperature may also contribute to broad CMA formation. However, the presence of coeval pairs of both narrow and broad CMAs in the same area requires contrasting types of pluton growth history. Our thermal modeling, constrained by the peak metamorphic temperature, shows the broad CMA of a well-developed pair of CMAs in the Hongusan area of Japan is due to a magmatic history, including magma tapping and replenishment. A global compilation of CMAs suggests more than 30% of plutons are associated with broad CMAs and fed contemporaneous volcanic eruption.

Název v anglickém jazyce

Identifying plutons associated with long-lived volcanism by thermal modeling of contact metamorphic aureoles

Popis výsledku anglicky

A compilation of the thicknesses of contact metamorphic aureoles (CMAs) developed around intermediate to felsic plutons shows many CMAs are far broader than expected by commonly used thermal models for pluton emplacement. Shortfalls in the amount of heat potentially provided based on pluton size, compared to that needed to form the observed CMA, can be accounted for if some hot magma has been lost by volcanic eruption after passing through the pluton domain and replaced by new hot magma. A high ambient temperature may also contribute to broad CMA formation. However, the presence of coeval pairs of both narrow and broad CMAs in the same area requires contrasting types of pluton growth history. Our thermal modeling, constrained by the peak metamorphic temperature, shows the broad CMA of a well-developed pair of CMAs in the Hongusan area of Japan is due to a magmatic history, including magma tapping and replenishment. A global compilation of CMAs suggests more than 30% of plutons are associated with broad CMAs and fed contemporaneous volcanic eruption.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Geology

ISSN

0091-7613

e-ISSN

1943-2682

Svazek periodika

51

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

1173-1177

Kód UT WoS článku

001124093100006

EID výsledku v databázi Scopus

2-s2.0-85179840543