Replication Data for: Cenozoic stages of forearc evolution following the accretion of a sliver from the Late Cretaceous-Caribbean Large Igneous Province (CLIP): SW Ecuador-NW Peru (doi:10.18710/BYZIZX)

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Part 1: Document Description
Part 2: Study Description
Part 3: Data Files Description
Part 4: Variable Description
Part 5: Other Study-Related Materials
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Replication Data for: Cenozoic stages of forearc evolution following the accretion of a sliver from the Late Cretaceous-Caribbean Large Igneous Province (CLIP): SW Ecuador-NW Peru

doi:10.18710/BYZIZX

DataverseNO

2019-02-28

1

Aizprua, Carlos; Witt, Cesar; Johansen, Ståle; Barba, Diego, 2019, "Replication Data for: Cenozoic stages of forearc evolution following the accretion of a sliver from the Late Cretaceous-Caribbean Large Igneous Province (CLIP): SW Ecuador-NW Peru", https://doi.org/10.18710/BYZIZX, DataverseNO, V1, UNF:6:tbDSuzaoz4y+oh7ofqDBYQ== [fileUNF]

Replication Data for: Cenozoic stages of forearc evolution following the accretion of a sliver from the Late Cretaceous-Caribbean Large Igneous Province (CLIP): SW Ecuador-NW Peru

doi:10.18710/BYZIZX

Aizprua, Carlos (NTNU – Norwegian University of Science and Technology)

Witt, Cesar (University of Lille)

Johansen, Ståle (NTNU – Norwegian University of Science and Technology)

Barba, Diego (Petroamazonas)

Aizprua Luna, Carlos

NTNU – Norwegian University of Science and Technology

DataverseNO

NTNU – Norwegian University of Science and Technology

Carlos Aizprua Luna

Aizprua, Carlos

2019-01-31

https://doi.org/10.18710/BYZIZX

Earth and Environmental Sciences, North Andean Sliver, Forearc, Caribbean Large Igneous Province

<p>The dataset include 2D seismic profiles and well log data from the Gulf of Guayaquil-Tumbes basin, SW Ecuador-NW Peru, used in the article: Cenozoic stages of forearc evolution following the accretion of a sliver from the Late Cretaceous-Caribbean Large Igneous Province (CLIP): SW Ecuador-NW Peru.</p> <p></p> <p>The SW Ecuador-NW Peru forearc region is the southernmost location, where the Caribbean Large Igneous Province (CLIP) interacted with the South American margin since the Late Cretaceous. The accretion of the CLIP to the margin led to the entrapment of the North Andean crustal Sliver, conforming the underlying basement of the forearc region in Ecuador, whereas in NW Peru, forearc depocenters involve rocks of continental affinity. Many existing tectonic reconstructions have treated these two areas independently, largely based on their crustal affinities. In contrast, this study integrates previous studies into an analysis of unpublished seismic profiles, potential field data, outcrop stratigraphy, and recent studies dealing with the dynamics of allochthonous terrane accretion along continental margins. Our integrated approach shows that SW Ecuador was dominated by a Late Cretaceous deforming outer wedge, which may have constituted a remnant of a northeast or northwest-dipping obliquely obducted oceanic block at the edge of the CLIP. This tectonic phase was governed by plate instability, affecting NW Peru and SW Ecuador, followed by re-establishment of the margin by early Eocene. The resulting margin configuration and the spatial distribution of the different tectonic elements seems to have played a key role on further Cenozoic development of the forearc region. The model presented in this study proposes that the accretion of buoyant oceanic terranes may have had a profound impact on the early margin configuration of SW Ecuador and NW Peru and led to the development of localized but genetically related forearc depocenters.</p>

1989-01-01-2000-12-31

Ecuador, Peru

• West Bounding Longitude: -82.0
• East Bounding Longitude: -79.0
• South Bounding Latitude: -4.0
• North Bounding Latitude: -2.0

2D Seismic data

Well log data

Data provided by PETROAMAZONAS (National oil&gas company in Ecuador)

Please contact the distributor Carlos Aizprua (calun@equinor.com) regarding inquiries for additional data.

<a href="http://creativecommons.org/publicdomain/zero/1.0">CC0 1.0</a>

Aizprua, C., Witt, C., Johansen, S. E., & Barba, D. (2019). Cenozoic stages of forearc evolution following the accretion of a sliver from the Late Cretaceous-Caribbean large igneous province: SW Ecuador-NW Peru. Tectonics, 38, 1441– 1465. https://doi.org/10.1029/2018TC005235

10.1029/2018TC005235

Aizprua, C., Witt, C., Johansen, S. E., & Barba, D. (2019). Cenozoic stages of forearc evolution following the accretion of a sliver from the Late Cretaceous-Caribbean large igneous province: SW Ecuador-NW Peru. Tectonics, 38, 1441– 1465. https://doi.org/10.1029/2018TC005235

• Number of cases: 4099

• No. of variables per record: 4

• Type of File: text/tab-separated-values

UNF:6:tbDSuzaoz4y+oh7ofqDBYQ==

Coordinates positioning file for the different seismic lines

• Line - Line
• Trace - Trace
• X - X
• Y - Y

f5991 Location:

Summary Statistics: Max. 1.0; Valid 4099.0; Min. 1.0; StDev 0.0; Mean 1.0;

Variable Format: numeric

Notes: UNF:6:JKQEYofJ1GG7Z3GjX1o43g==

f5991 Location:

Summary Statistics: Min. 1.0; Valid 4099.0; Mean 2050.0; StDev 1183.4237054692908; Max. 4099.0

Variable Format: numeric

Notes: UNF:6:Jp2+ITO+KiLth0FY1jxEmw==

f5991 Location:

Summary Statistics: Max. 532998.0; Valid 4099.0; Min. 522787.0; Mean 527897.4525494021; StDev 2942.748329699213

Variable Format: numeric

Notes: UNF:6:bCVZQAci8N3HYxRI4rVFhw==

f5991 Location:

Summary Statistics: Valid 4099.0; Max. 9755347.0; Mean 9746475.126128323; Min. 9737584.0; StDev 5118.5283658454755;

Variable Format: numeric

Notes: UNF:6:9YTWi2X47C1UUZr/2fGvyg==

Label:

00_ReadMe.txt

Text:

File describing the content of the repository

text/plain

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2dSeis_9822.tif

Text:

Seismic line in .tif format

image/tiff

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2dSeis_AIP92-49.tif

Text:

Seismic line in .tif format

image/tiff

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2dSeis_e86_283_migration.tif

Text:

Seismic line in .tif format

image/tiff

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2dSeis_g83_13w_migration.tif

Text:

Seismic line in .tif format

image/tiff

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2dSeis_g83_13_migration.tif

Text:

Seismic line in .tif format

image/tiff

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2dSeis_g83_28_migration.tif

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Seismic line in .tif format

image/tiff

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2dSeis_g83_80_migration.tif

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Seismic line in .tif format

image/tiff

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2dSeis_GS-05.tif

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Seismic line in .tif format

image/tiff

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2dSeis_GS-10.tif

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Seismic line in .tif format

image/tiff

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2dSeis_gt83_w21_migration.tif

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Seismic line in .tif format

image/tiff

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2dSeis_w21_migration.tif

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Seismic line in .tif format

image/tiff

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2dSeis_WB86_Line13.tif

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Seismic line in .tif format

image/tiff

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2dSeis_w_13a_migration.tif

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Seismic line in .tif format

image/tiff

Label:

3dSeis_Inline1550.tif

Text:

Seismic line in .tif format

image/tiff

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ECU_B1-NSX1-1X.tif

Text:

Unedited set of well logs used during this study

image/tiff

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ECU_B2-ANX1-1X.tif

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Unedited set of well logs used during this study

image/tiff

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ECU_B2-CHX1-1X.tif

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Unedited set of well logs used during this study

image/tiff

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ECU_ESPERANZA-1.tif

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Unedited set of well logs used during this study

image/tiff

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ECU_GG-1.tif

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Unedited set of well logs used during this study

image/tiff

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ECU_GOLFO-1.tif

Text:

Unedited set of well logs used during this study

image/tiff

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ECU_PACOA X1.tif

Text:

Unedited set of well logs used during this study

image/tiff

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ECU_PLAYAS-1.tif

Text:

Unedited set of well logs used during this study

image/tiff

Label:

ECU_TIBURON-1.tif

Text:

Unedited set of well logs used during this study

image/tiff

Label:

Grav_Bouguer_Sandwell.gxf

Text:

Bouguer onshore, Free-air offshore, Sandwell v23-1

application/gxf