Article citationsMore>>
Smittarello, D., Smets, B., Barriere, J., Michellier, C., Oth, A., Shreve, T., Grandin, R., Theys, N., Brenot, H., Cayol, V., Allard, P., Caudron, C., Chevrel, O., Darchambeau, F., de Buyl, P., Delhaye, L., Derauw, D., Ganci, G., Geirsson, H., Kamate Kaleghetso, E., Kambale Makundi, J., Kambale Nguomoja, I., Kasereka Mahinda, C., Kervyn, M., Kimanuka Ruriho, C., Le Mevel, H., Molendijk, S., Namur, O., Poppe, S., Schmid, M., Subira, J., Wauthier, C., Yalire, M., d’Oreye, N., Kervyn, F. and Syavulisembo Muhindo, A. (2022) Precursor-Free Eruption Triggered by Edifice Rupture at Nyiragongo Volcano. Nature, 609, 83-88.
https://doi.org/10.1038/s41586-022-05047-8
has been cited by the following article:
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TITLE:
Magmatic Evolution of the Western Branch of the East African Rift System Melts: Evidence by Silicate Melt Inclusions, Rock Petrography and Geochemistry of the Nyiragongo 1977 and 2002 Lavas in DRC
AUTHORS:
Douxdoux Kumakele Makutu
KEYWORDS:
Nyiragongo Lava, Petrography, Geochemistry, SMIs, LA-ICP-MS, Rifting, Magma Evolution
JOURNAL NAME:
Open Journal of Geology,
Vol.13 No.5,
May
31,
2023
ABSTRACT: Nyiragongo volcanic eruptions of 1977 and 2002 emitted
silica-undersaturated lavas named melilite-nephelinites with microlithic to sub-porphyritic textures, and
consisted of olivine, clinopyroxene (augite), phlogopite, melilite, magnetite,
and rare plagioclases. This melilite-nephelinite as an evolved rock, shows low
SiO2 (38.40 - 39.52 wt%) and MgO (3.10 - 4.01
wt%), and relatively high FeOt (13.76 - 14.10
wt%), Al2O3 (15.01 - 16.48
wt%), CaO (11.00 - 12.29 wt%) and Na2O + K2O
(10.34 - 11.85 wt%). Unlike LA-ICP-MS on silicate melt
inclusions (SMIs) hosted in augite show a pristine melt of picrobasaltic (low
Ti-picrite) rock poor in SiO2 (31.14 - 32.26
wt%), FeOt (2.19 - 2.79 wt%), Al2O3 (8.01 - 9.57
wt%), and Na2O + K2O (2.34 - 3.05
wt%), while enriched in MgO (20.27 - 28.63 wt%), and CaO (24.95 - 33.17
wt%). The sums (∑REEs) for lavas and SMIs are ranging 712 - 799 and
43 - 119 ppm respectively. REE contracted multi-element
patterns showed a W-feature for most lavas except for SMIs. High Rb/Sr, and low Ba/Rb, Zr/Nb,
and Sm/Hf ratios of lavas suggest a phlogopite-rich source of materials.
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