2026-05-15T02:28:05Zhttp://doidb.wdc-terra.org/oaip/oaioai:doidb.wdc-terra.org:86492026-03-06T11:10:24ZDOIDBDOIDB.FIDfalse4DOIDB.FID
10.5880/fidgeo.2026.026
Guarino, Vincenza
Vincenza
Guarino
0000-0003-4313-5493
Università degli Studi di Napoli Federico II, Naples, Italy
Melluso, Leone
Leone
Melluso
0000-0003-4144-8998
Università degli Studi di Napoli Federico II, Naples, Italy
Bonazzi, Mattia
Mattia
Bonazzi
0000-0002-5192-6765
Istituto di Geoscienze e Georisorse (IGG-CNR), Pavia, Italy
Zanetti, Alberto
Alberto
Zanetti
0000-0001-9026-1519
Istituto di Geoscienze e Georisorse (IGG-CNR), Pavia, Italy
Trace element analysis of the main minerals in the Salitre lamprophyre (APIP, Brazil)
GFZ Data Services
2026
EPOS
multi-scale laboratories
geochemistry and microscopy
geochemistry data
compound material > igneous material > igneous rock > exotic composition igneous rock
In Situ/Laboratory Instruments > Spectrometers/Radiometers > LA-ICP-MS
Phanerozoic > Mesozoic > Cretaceous > Late/Upper Cretaceous
Science Keywords > EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY
Science Keywords > EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS
Mass spectrometry la-icp laboratory (IGG-CNR, Italy)
d67c9a04c0a838a931ef0363edc9f5b2
Istituto di Geoscienze e Georisorse (IGG-CNR), Pavia, Italy
ILGE TNA/NOA
MEET Project (Monitoring Earth's Evolution and Tectonics)
Guarino, Vincenza
Università degli Studi di Napoli Federico II, Naples, Italy
Dataset
https://ilge.ct.ingv.it/
https://meet.ingv.it/
10.1016/j.chemgeo.2012.06.016
10.1016/j.lithos.2011.11.004
10.11606/issn.2316-8986.v19i0p63-85
CC BY 4.0
The Upper Cretaceous Salitre intrusion, subdivided into Salitre I and Salitre II and dated to ~86-82 Ma by Sonoki and Garda (1988), is part of the Alto Paranaíba Igneous Province (APIP, Fig. 1) in Brazil, which is one of the largest ultrapotassic / carbonatitic / kimberlitic provinces in the world. The intrusion is characterized by the presence of lamproites, carbonatites and one lamprophyre (analyzed here), as well as along with a variety of intrusive cumulitic rocks.
Among the Salitre studied samples, this alkaline lamprophyre is characterized by low SiO2 (35.6 wt%), ultrapotassic (K2O/Na2O = 5; K2O = 4.4 wt%) and peralkaline (PI = 1.3). It exhibits variable MgO content (14 wt%) and is enriched in REEs (∑REE=~1,300 ppm) and other trace elements (Nb, Ta, Zr, Hf, Sr, Ba). This lamprophyre is characterized by olivine and phlogopite phenocrysts set in a fine-grained groundmass of clinopyroxene, apatite, phlogopite, magnetite, chromite, and perovskite, with rare titanite and garnet; kalsilite is absent.
Analyzing the trace elements of the main minerals in this lamprophyre helped us learn more about the origin and evolution of these magmas, as well as their possible genetic link with the other Salitre rocks. This analysis also provided important information about their enrichment in rare earth elements (REEs) and high field strength elements (HFSEs).
This publication results from work conducted under the transnational access/national open access action at Mass spectrometry la-icp laboratory (IGG-CNR, Italy) supported by WP3 ILGE - MEET project, PNRR - EU Next Generation Europe program, MUR grant number D53C22001400005.
European Commission
http://dx.doi.org/10.13039/501100000780
MEET
Ministero dell'Università e della Ricerca
http://dx.doi.org/10.13039/501100021856
D53C22001400005
MEET