Citation:

PANGAEA.922331

Name: Seismic reflection datasets during cruise ILAB-SPARC and iLAB TransAtlantic, Chain Fracture Zone
Published: 2020-09-04
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Equatorial Atlantic; MCS seismic

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Abstract:

The seismic data sample the oceanic lithosphere extending between the Romanche Transform Fault to the Charcot Fracture Zone.

Reflection (multichannel seismic - MCS data), we provide are sorted as CMP gathers that were used to produce seismic sections for imaging layer 2A. The data were collected during two experiments, using different survey geometries:

1) ILAB_SPARC_CMP.segy (in 5 parts): collected during ILAB_SPARC experiment conducted aboard N/O Pourquoi Pas? in Fall 2018, sample the region south of the Chain Fracture Zone. The maximum source-receiver offset is ~6 km. Note that the provided data were interpolated only in the shot domain (data fold 40).

2) TransAtlantic_CMP.segy (provided in two parts): collected during iLAB TransAtlantic survey aboard M/V Western Trident in Spring 2015. The data sample the region between the Chain Fracture ZOne and Romanche Transform Fault. The maximum source-receiver offset provided is ~ 6 km.

Keyword(s):

Equatorial Atlantic; MCS seismic

Coverage:

Median Latitude: -1.287869 * Median Longitude: -17.190139 * South-bound Latitude: -3.342100 * West-bound Longitude: -17.691800 * North-bound Latitude: 0.857780 * East-bound Longitude: -16.595500

Date/Time Start: 2018-08-26T00:00:00 * Date/Time End: 2018-10-01T00:00:00

Event(s):

ILAB-SPARC-track * Latitude Start: -3.342100 * Longitude Start: -16.595500 * Latitude End: -0.511516 * Longitude End: -17.253500 * Date/Time Start: 2018-08-26T00:00:00 * Date/Time End: 2018-10-01T00:00:00 * Campaign: * Basis: Pourquoi Pas ? (2005) * Method/Device: Multichannel seismics (MCSEIS)

iLAB-TransAtlantic-track * Latitude Start: -2.155639 * Longitude Start: -17.219756 * Latitude End: 0.857780 * Longitude End: -17.691800 * Campaign: * Basis: * Method/Device: Multichannel seismics (MCSEIS)

Parameter(s):

#	Name	Short Name	Principal Investigator	Comment
1	Event label	Event	Marjanovic, Milena
2	File content	Content	Marjanovic, Milena
3	Binary Object	Binary	Marjanovic, Milena	CMP
4	Binary Object	Binary	Marjanovic, Milena	navigation

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

24 data points

Data

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1 Event	2 Content	3 Binary (CMP)	4 Binary (navigation)
ILAB-SPARC-track	navigation ILAB-SPARC MCS line		ILAB_SPARC_01.txt
ILAB-SPARC-track	navigation ILAB-SPARC MCS line		ILAB_SPARC_02.txt
ILAB-SPARC-track	navigation ILAB-SPARC MCS line		ILAB_SPARC_03.txt
ILAB-SPARC-track	Reflection (multichannel seismic - MCS data)	ILAB_SPARC_CMP_part1.segy
ILAB-SPARC-track	Reflection (multichannel seismic - MCS data)	ILAB_SPARC_CMP_part2.segy
ILAB-SPARC-track	Reflection (multichannel seismic - MCS data)	ILAB_SPARC_CMP_part3.segy
ILAB-SPARC-track	Reflection (multichannel seismic - MCS data)	ILAB_SPARC_CMP_part4.segy
ILAB-SPARC-track	Reflection (multichannel seismic - MCS data)	ILAB_SPARC_CMP_part5.segy
iLAB-TransAtlantic-track	navigation for TransAtlantic MCS line		sequence_17_ll_new.txt
iLAB-TransAtlantic-track	navigation for TransAtlantic MCS line		sequence_18_ll_new.txt
iLAB-TransAtlantic-track	Reflection (multichannel seismic - MCS data)	TransAtlantic_CMP_part1.segy
iLAB-TransAtlantic-track	Reflection (multichannel seismic - MCS data)	TransAtlantic_CMP_part2.segy