search DOI 10.17882/76489

Seismic refraction across the Limpopo magma-rich transform margin (South Mozambique)

 Two seismic refraction models with coincident multichannel seismic reflection profiles allow us to obtain a detailed interpretation of the velocity structures across the margin. This comprehensive dataset provides (1) the delineation of the major crustal domains in the study area, which is continental onland; (2) P-wave velocities and major geological interfaces down to the Moho; and (3) the along-strike variations of the deep structures and indications of magmatism. 

The interpretation of these seismic refraction models is related to the publication of  Watremez et al. (in rev) Tectonics

Marine geology

Refraction seismic, Magma-rich Transform margin, P-waves velocities models

-22.5N, -26S, 39E, 33.5W

MicroOBS and onland seismic stations

Data

all the picks and associated uncertainties of the MZ4 profile corresponding to Rayinvr's tx.in files.
1 MoTEXTProcessed data
all the picks and associated uncertainties of the MZ5 profile corresponding to Rayinvr's tx.in files.
2 MoTEXTProcessed data
Model of MZ4 line corresponding to Rayinvr's v.in
25 KoTEXTProcessed data
Model of MZ5 line corresponding to Rayinvr's v.in
39 KoTEXTProcessed data
The AllData.pdf file shows the seismic records of all the sea-bottom and land- seismometers, organised as receiver gathers. A gentle bandpass filter (2-5-18-30 Hz) was applied for display purpose.
66 MoPDFQuality controlled data
Watremez Louise, Leroy Sylvie, D'Acremont Elia, Roche Vincent, Evain Mikael, Lepretre Angelique, Verrier Fanny, Aslanian Daniel, Dias Nuno, Afilhado Alexandra, Schnurle Philippe, Castilla Raymi, Despinois Frank, Moulin Maryline (2021). Seismic refraction across the Limpopo magma-rich transform margin (South Mozambique). SEANOE. https://doi.org/10.17882/76489
Watremez L., Leroy S., D’acremont E., Roche V., Evain Mikael, Leprêtre A., Verrier Fanny, Aslanian Daniel, Dias N., Afilhado A., Schnurle Philippe, Castilla R., Despinois F., Moulin Maryline (2021). The Limpopo magma‐rich transform margin, South Mozambique – Part 1: Insights from deep‐structure seismic imaging. Tectonics. 40 (12). e2021TC006915 (29p.). https://doi.org/10.1029/2021TC006915, https://archimer.ifremer.fr/doc/00737/84860/

Aslanian Daniel, Schnurle Philippe, Evain Mikael, Moulin Maryline (2022). Comment on ‘The challenge in restoring magma-rich rifted margins: The example of the Mozambique-Antarctica conjugate margins’ by Tomasi S. et al. Gondwana Research. 103. 401-403. https://doi.org/10.1016/j.gr.2021.10.019, https://archimer.ifremer.fr/doc/00733/84536/
L. Watremez, S. Leroy, E. d’Acremont, V. Roche, M. Evain, A. Leprêtre, F. Verrier, D. Aslanian, N. Dias, A. Afilhado, P. Schnurle, R. Castilla, F. Despinois, and M. Moulin (2022). The Limpopo magma-rich transform margin, South Mozambique – Part 1: Insights from deep-structure seismic imaging. . Tectonics.
Roche V., Leroy S., Guillocheau F., Revillon Sidonie, Ruffet G., Watremez L., D’acremont E., Nonn C., Vetel W., Despinois F. (2021). The Limpopo magma‐rich transform margin, South Mozambique – part 2: Implications for the Gondwana breakup. Tectonics. 40 (12). e2021TC006914 (23p.). https://doi.org/10.1029/2021TC006914, https://archimer.ifremer.fr/doc/00735/84740/
MOULIN Maryline, Daniel, ASLANIAN (2016). PAMELA-MOZ03 cruise,Pourquoi pas ? R/V. Sismer. https://doi.org/10.17600/16001600
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