Image dataset of the Holocene volcanism on the island of El Hierro (Canary Islans, Spain): stratigraphic relationships

This dataset includes 28 photographs illustrating the stratigraphic relationships among the 27 eruptions out of 42 Holocene eruptions on the island of El Hierro (Canary Islands), investigated within the LAJIAL Project (PGC2018-101027-B-100). The Project was developed at the University of Las Palmas de Gran Canaria, the GEO3BCN (CSIC), the University of Barcelona, and the University of La Laguna. Within the same Project, we delivered a previous dataset focused on the petrographic features of the Holocene volcanism of El Hierro island (Prieto-Torrell et al., 2024a).

The stratigraphic relationships among the Holocene eruptions are based on field observations, applying stratigraphic and geomorphological criteria as the overlapping of lava flows from different eruptions or the surroundings of lava flows to previous volcanic cones and lava fields. For the isolated eruptions or not observed stratigraphic relationships (12 eruptios), the chronostratigraphic control is limited for radiometric ages or the formation of coastal lava deltas (Carracedo et al., 2001; Rodríguez-González et al., 2022).

A simplified geological map introduces the main features of El Hierro Island, whereas a second map (page 3) shows the four detail areas used to organize the images. The identification numbers (ID) and names of eruptions are according to Prieto-Torrell et al. (2024b). Each of these detail areas contains a link that leads to the corresponding detail map, with which the section of its images begins. Similarly, the detail maps incorporate a clicking button that returns to the general map of page 3.

Inside the detailed maps are located icons of a photo camera (with the orientation in which the photographs were taken) linked to the corresponding photograph that illustrates a specific stratigraphic relationship. Each photograph incorporates a clicking button that returns to the corresponding detail map. The coordinates of the point where the photograph was taken are indicated on each photo. Furthermore, contacts are marked with dashed lines, and the flow direction of lava flows is indicated with arrows. Each photo is accompanied by a brief explanation denoting the eruptions involved.

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http://hdl.handle.net/10553/131981