Search Results - "López de Luchi, Mónica"
-
1
Chemical and boron isotope composition of tourmaline from pegmatites and their host rocks, Sierra de San Luis, Argentina
Published in Canadian mineralogist (01-05-2021)“…We report chemical and B-isotope analyses of tourmaline from Ordovician S-type granites, an aplite, LCT-type (lithium-cesium-tantalum) pegmatites, and…”
Get full text
Journal Article -
2
Time constraints on the tectonic evolution of the Eastern Sierras Pampeanas (Central Argentina)
Published in International journal of earth sciences : Geologische Rundschau (01-09-2010)“…The application of the SHRIMP U/Pb dating technique to zircon and monazite of different rock types of the Sierras de Córdoba provides an important insight into…”
Get full text
Journal Article -
3
The Neoproterozoic-early Paleozoic metamorphic and magmatic evolution of the Eastern Sierras Pampeanas: an overview
Published in International journal of earth sciences : Geologische Rundschau (01-04-2011)“…The Eastern Sierras Pampeanas were structured by three main events: the Ediacaran to early Cambrian (580–510 Ma) Pampean, the late Cambrian–Ordovician…”
Get full text
Journal Article -
4
Intra-granitic pegmatites of the Las Chacras-Potrerillos batholith (Sierra de San Luis, Argentina): Geochemistry, dating, and a new model of magma evolution
Published in Journal of South American earth sciences (01-07-2023)“…The chemical composition of primary minerals and fine-grained border zones from intra-granitic pegmatites have been analyzed to constrain the last stages of…”
Get full text
Journal Article -
5
Emplacement and temporal constraints of the Gondwanan intrusive complexes of northern Patagonia: La Esperanza plutono-volcanic case
Published in Tectonophysics (21-08-2017)“…Two main lines of evidence disagree whether or not the Patagonian blocks collided with Gondwana. All models invoke the voluminous magmatism of the La Esperanza…”
Get full text
Journal Article -
6
Geochemistry and geochronology of the shallow-level La Esperanza magmatic system (Permian-Triassic), Northern Patagonia
Published in Journal of South American earth sciences (01-12-2019)“…The La Esperanza plutonic-volcanic complex is the largest Late Paleozoic-Early Triassic composite magmatic system of northern Patagonia. This paper reports new…”
Get full text
Journal Article -
7
Paleomagnetism of Permo–Triassic volcanic units in northern Patagonia: are we tracking the final stages of collision of Patagonia?
Published in International journal of earth sciences : Geologische Rundschau (01-03-2019)“…A paleomagnetic and geochronologic study was carried out on Late Permian-to-Early Triassic magmatic units exposed in the North Patagonian Massif, near the…”
Get full text
Journal Article -
8
Reconciling Patagonia with Gondwana in early Paleozoic? Paleomagnetism of the Valcheta granites, NE North Patagonian Massif
Published in Journal of South American earth sciences (01-03-2021)“…A paleomagnetic study was carried out in the Ordovician granitoids located in the northeastern North Patagonian Massif (NPM), close to Valcheta town (Río Negro…”
Get full text
Journal Article -
9
Petrogenesis of the postcollisional Middle Devonian monzonitic to granitic magmatism of the Sierra de San Luis, Argentina
Published in Lithos (01-09-2017)“…Middle Devonian granitoids intruded the Eastern Sierras Pampeanas basement ca. 600km east of the inferred proto-Pacific margin of Gondwana along which a ca…”
Get full text
Journal Article -
10
The Chemical and B-Isotope Composition of Tourmaline from Intra-Granitic Pegmatites in the Las Chacras-Potrerillos Batholith, Argentina
Published in Canadian mineralogist (01-01-2022)“…The Devonian Las Chacras-Potrerillos batholith comprises six nested monzonitic to granitic intrusions with metaluminous to weakly peraluminous composition and…”
Get full text
Journal Article -
11
Geochronologic evidence of a large magmatic province in northern Patagonia encompassing the Permian-Triassic boundary
Published in Journal of South American earth sciences (01-03-2018)“…The Los Menucos Complex (northern Patagonia) consists of ∼6 km thick succession of acidic and intermediate volcanic and pyroclastic products, which has been…”
Get full text
Journal Article -
12
The tectonic significance of K/Ar illite fine-fraction ages from the San Luis Formation (Eastern Sierras Pampeanas, Argentina)
Published in International journal of earth sciences : Geologische Rundschau (01-04-2011)“…The Sierra de San Luis forms the southern tip of the Eastern Sierras Pampeanas in central Argentina. Two narrow belts of low-grade phyllites and quartz…”
Get full text
Journal Article -
13
The Late Triassic Central Patagonian Batholith: Magma hybridization, 40Ar/39Ar ages and thermobarometry
Published in Journal of South American earth sciences (01-11-2014)“…The Late Triassic Central Patagonian Batholith is a key element in paleogeographic models of West Gondwana just before to the break-up of the supercontinent…”
Get full text
Journal Article -
14
Jurassic cooling ages in Paleozoic to early Mesozoic granitoids of northeastern Patagonia: 40Ar/39Ar, 40K–40Ar mica and U–Pb zircon evidence
Published in International journal of earth sciences : Geologische Rundschau (01-10-2017)“…U–Pb SHRIMP zircon crystallization ages and Ar–Ar and K–Ar mica cooling ages for basement rocks of the Yaminué and Nahuel Niyeu areas in northeastern Patagonia…”
Get full text
Journal Article -
15
Geochemistry of the (meta-)mafic rocks from the Gonzalito mining district, northern Patagonia
Published in Journal of South American earth sciences (01-12-2020)“…In spite of hosting one of the most important Pb–Ag–Zn mineralizations in Patagonia, the metamorphic history of the rocks of the Mina Gonzalito Complex (MGC;…”
Get full text
Journal Article -
16
The Permian to early Triassic granitoids of the Nahuel Niyeu - Yaminué area, northern Patagonia: Igneous stratigraphy, geochemistry and emplacement conditions
Published in Journal of South American earth sciences (01-03-2021)“…We present the first geochronologically constrained igneous stratigraphy of the Permian to Early Triassic magmatism of the Nahuel Niyeu and Yaminué areas,…”
Get full text
Journal Article -
17
Provenance of the late Proterozoic to early Cambrian metaclastic sediments of the Sierra de San Luis (Eastern Sierras Pampeanas) and Cordillera Oriental, Argentina
Published in Journal of South American earth sciences (01-10-2009)“…Provenance studies have been performed utilising major and trace elements, Nd systematics, whole rock Pb–Pb isotopes and zircon U/Pb SHRIMP data on…”
Get full text
Journal Article -
18
The Conlara Metamorphic Complex: Lithology, provenance, metamorphic constraints on the metabasic rocks, and chime monazite dating
Published in Journal of South American earth sciences (01-03-2021)“…The Conlara Metamorphic Complex, the easternmost complex of the Sierra de San Luis, is a key unit to understand the relationship between the late…”
Get full text
Journal Article -
19
Magnetic fabric and microstructures of Late Paleozoic granitoids from the North Patagonian Massif: Evidence of a collision between Patagonia and Gondwana?
Published in Tectonophysics (29-10-2010)“…Widespread Late Paleozoic magmatism in northern Patagonia is a target to test hypotheses on the long standing question over the origin of Patagonia. In recent…”
Get full text
Journal Article -
20
Crustal segments in the North Patagonian Massif, Patagonia: An integrated perspective based on Sm–Nd isotope systematics
Published in Journal of South American earth sciences (01-03-2011)“…New insights on the Paleozoic evolution of the continental crust in the North Patagonian Massif are presented based on the analysis of Sm–Nd systematics. New…”
Get full text
Journal Article