CALDERON NETTLE, MAURICIO ROBERTO

Preferred name

Main Affiliation

Facultad de Ingeniería

mauriciocalderon@udd.cl

ORCID

0000-0002-3605-0363

Scopus Author ID

15519296200

Goggle Scholar

https://scholar.google.com/citations?user=8W2kXpwAAAAJ&hl=es&oi=ao

Now showing 1 - 10 of 24

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Special Issue dedicated to Francisco Hervé: Research on the South West Margin of Gondwana
(Pontificia Universidad Catolica de Valparaiso, 2026-06-01)
Pankhurst, Robert
;
Castillo, Paula
;
CALDERON NETTLE, MAURICIO ROBERTO
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Dataset - Thermochronological Evidence for Eocene Deformation in the Southern Patagonian Andes: Linking Orogenesis Along the Patagonian Orocline
(Geochron, 2023)
CALDERON NETTLE, MAURICIO ROBERTO
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Neogene Patagonian magmatism between the rupture of the Farallon plate and the Chile Ridge subduction
(2021)
Cristóbal Ramírez de Arellano
;
CALDERON NETTLE, MAURICIO ROBERTO
;
Huber Rivera
;
Mauricio Valenzuela
;
C. Mark Fanning
1Scopus© Citations 5
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Late Paleozoic magmatism and foreland deformation associated with opening and closing of marginal basins in the North Patagonian Andes
(2024)
C. W. Rapela
;
M. García
;
F. Hervé
;
R. J. Pankhurst
;
CALDERON NETTLE, MAURICIO ROBERTO
<jats:p> Remnants of coeval Devonian oceanic and continental foreland rocks are preserved in the basement of the North Patagonian Andes. Our previous studies of the igneous rocks here have shown that the primitive oceanic and continental igneous rocks are coeval and belong to a marginal basin that opened and closed over 50 Myr. A structural study and four new U–Pb SHRIMP ages and zircon Hf–O determinations allowed the identification of three metamorphic episodes, the first one of which, M <jats:sub>1</jats:sub> (D <jats:sub>1</jats:sub> -S <jats:sub>1</jats:sub> ), is coeval with Andean-type granite intrusion in the foreland (405–380 Ma). This activity was simultaneous with the development of an oceanic ridge and a marginal basin, at the outer edge of which a primitive granitic oceanic arc formed (380–385 Ma; zircon <jats:inline-formula> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>δ</mml:mi> </mml:math> </jats:inline-formula> <jats:sup>18</jats:sup> O 3.6–5.2‰). The extinction of this ridge initiated under-thrusting of the oceanic crust below the continent and an important mid- to high-grade metamorphic event, M <jats:sub>2</jats:sub> (D <jats:sub>2</jats:sub> -S <jats:sub>2</jats:sub> ) at 375–360 Ma, its peak dated by metamorphic zircon rims in migmatite at 365 ± 3 Ma. Basin closure occurred after the intrusion of S-type granites (357 ± 2 Ma; zircon <jats:inline-formula> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>δ</mml:mi> </mml:math> </jats:inline-formula> <jats:sup>18</jats:sup> O 7.4–10.4‰) in the foreland and the accretion of gabbros, cumulate gabbros and trondhjemites at the proto-Pacific margin. Compression prevailed for 20 Myr in the foreland, causing a mylonitic medium-grade M <jats:sub>3</jats:sub> (D <jats:sub>3</jats:sub> -S <jats:sub>3</jats:sub> ) event. </jats:p> <jats:p content-type="supplementary-material"> <jats:bold>Supplementary material:</jats:bold> Datasets are available at <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" specific-use="dataset is-supplemented-by" xlink:href="https://doi.org/10.6084/m9.figshare.c.6989873">https://doi.org/10.6084/m9.figshare.c.6989873</jats:ext-link> </jats:p>
5Scopus© Citations 14
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Thermochronological Evidence for Eocene Deformation in the Southern Patagonian Andes: Linking Orogenesis Along the Patagonian Orocline
(2023)
A. L. Stevens Goddard
;
J. C. Fosdick
;
CALDERON NETTLE, MAURICIO ROBERTO
;
M. C. Ghiglione
;
R. A. VanderLeest
3Scopus© Citations 9
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Miocene bimodal magmatism in the Packsaddle Volcanic Complex, Fuegian Andes, southernmost South America: evidence of oceanic-ridge subduction
(Pontificia Universidad Catolica de Valparaiso, 2026-06-01)
Ramírez de Arellano, Cristobal
;
CALDERON NETTLE, MAURICIO ROBERTO
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Aspillaga, Benjamín
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Galaz, Gonzalo
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Descote, Pierre Yves
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The low-grade basement at Península La Carmela, Chilean Patagonia: new data for unraveling the pre-Permian basin nature of the Eastern Andean Metamorphic Complex
(2021)
D. Rojo
;
CALDERON NETTLE, MAURICIO ROBERTO
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M. C. Ghiglione
;
R. J. Suárez
;
P. Quezada
7Scopus© Citations 3
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The role of physicochemical and biochemical processes on carbonate precipitation within the Laguna Timone maar in the Pali Aike Volcanic Field, southernmost extra-Andean Patagonia
(2022)
Carolina Henríquez
;
CALDERON NETTLE, MAURICIO ROBERTO
;
Leonardo Fadel Cury
;
Gustavo Athayde
;
Sergio Carvajal
45Scopus© Citations 2
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Devonian metavolcanic rocks in the Rio Puelo section, Patagonian Andes of Chile: possible implications for the eastern limit of Chaitenia and the origin of the Liquiñe Ofqui Fault Zone
(Elsevier BV, 2026-04)
F. Hervé
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C.M. Fanning
;
P. Quezada
;
P. Castillo
;
K. Deckart
1
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Detrital isotopic record of a retreating accretionary orogen: An example from the Patagonian Andes
(2024)
F.M. Rey
;
M.A. Malkowski
;
J.C. Fosdick
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S.C. Dobbs
;
CALDERON NETTLE, MAURICIO ROBERTO
U-Pb zircon geochronology and isotopic records have played an influential role in our understanding of convergent margin dynamics. Orogenic cyclicity models link tectonic regimes with magmatic isotopic signatures in advancing orogens, relating compressional regimes with evolved signatures and extension with juvenile signatures; however, such frameworks may not apply for retreating orogens, which commonly produce substantial crustal heterogeneities during backarc rifting and ocean spreading. We explore the Mesozoic to Cenozoic Patagonian Andes tectonic evolution, combining U-Pb zircon ages, bulk rock εNd, and new detrital zircon εHf from the retroarc basin to understand the associated magmatic arc evolution during retreat and advance of the margin. Our results reveal a protracted phase of isotopically juvenile magmatism between 150 and 80 Ma, which began during backarc extension and persisted long after the margin switched to a contractional regime. We propose that the prolonged juvenile isotopic trend started mainly due to trenchward migration of the arc during backarc extension (150–120 Ma) and persisted due to partial melting of underthrusted juvenile attenuated and oceanic crust during backarc basin closure (120–80 Ma). This interpretation implies that tectonic stress alone does not predict isotopic trends, and factors like assimilation or the composition of underthrusted crust are important controls on magmatic isotopic composition, especially in retreating and transitional orogens.
1Scopus© Citations 9

CALDERON NETTLE, MAURICIO ROBERTO

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