Analogue models

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Resource ID

4c51e652-7108-11ea-88da-525400ab3635

Title

Analogue models

Date

March 28, 2020, 3:25 p.m., Publication

Abstract

This dataset presents the results of an experimental series of analogue models performed to investigate: i) the interaction between a propagating continental rift and inherited crustal fabrics in the Trans-Mexican Volcanic Belt. Here, our experimental series was designed by adopting a parametric approach, which consisted in the systematic variation of the orientation of various kinds of brittle discontinuities (e.g., faults, fractures, foliations, etc.). ii) the interactions between regional tectonics and volcanoes. Specifically, models tested the role of inherited structures in controlling caldera collapse. Models can be applied to the Los Humeros and Acoculco volcanic systems. iii) the collapse and resurgence of caldera and volcanic edifices and the associated surface deformation. Models can be applied to the Los Humeros volcanic system. Structures of models have been analysed quantitatively by means of photogrammetric digital elevation model reconstruction and semi-automatic fault pattern quantification.

Edition

Responsible

eugenio

Point of Contact

Trumpy

e.trumpy@igg.cnr.it

Purpose

This dataset was created to provide a summary of model setup and results (supplied as a .pdf summary sheet for each model). Detailed analysis and interpretation of models can be found in Deliverable D3.5 Report on the analogue modelling of the interactions between regional tectonics and volcanoes and Deliverable D3.6 Report on the analogue modelling of the collapse of caldera and volcanic edifices and the associated surface deformation.

Maintenance Frequency

notPlanned

Type

vector

Restrictions

None

License

CC BY 4.0

Language

eng

Temporal Extent

Start

End

Supplemental Information

We obtained three-dimensional rendering of each model basing on photogrammetric technique (e.g., Donnadieu et al., 2003) using Agisoft Photoscan® software. Each 3D model was obtained by photogrammetric interpolation of high-resolution photos (acquired with a Canon EOS 1300D reflex camera). The procedure for 3D model elaboration is summarized as follow: - 3D perspective photo acquisition - photos uploading, alignment and consequent creation of the sparse cloud (tie points) - creation of the dense cloud - interpolation of model mesh - creation of model texture - export of 3D pdf files with model rendering We have acquired perspective photos of the models to build up a 3D rendering and the consequent interpolated DEM, following the procedure described above for the creation of 3D models in Photoscan®. DEMs were interpolated directly from the sparse cloud. The use of markers placed at fixed, and locally geo-referenced positions on the model setup allowed an easy and equal scaling of all obtained DEMs. Some of the DEM were generated using a Laser scanner. Models belonging to this dataset and the derived data have been elaborated at the Tectonic Modelling Laboratory of CNR-IGG and University of Florence, Italy, as well as at the laboratory of CNR-IDPA Milano, and at the Laboratory of Experimental Tectonics of University of Roma Tre. This dataset has been also submitted as an Open Acces Database to Zenodo as “Maestrelli, D., Montanari, D., Corti, G., Del Ventisette, C., Moratti, G., Bonini, M. (2020). Analogue models testing the interaction between a propagating continental rift and inherited crustal fabrics. doi:10.5281/zenodo.3724666”. Please cite this database when using these data. This dataset provides supporting information to “Maestrelli, D., Montanari, D., Corti, G., Del Ventisette, C., Moratti, G., Bonini, M. (Submitted). Exploring the interactions between rift propagation and inherited crustal fabrics through experimental modelling.” Other reference: Donnadieu, F., Kelfoun, K., de Vries, B. V. W., Cecchi, E., & Merle, O. (2003). Digital photogrammetry as a tool in analogue modelling: applications to volcano instability. Journal of Volcanology and Geothermal Research, 123(1-2), 161-180. https://doi.org/10.1016/S0377-0273(03)00034-9

Data Quality

Analogue models were quantitatively scaled down to nature in order to be comparable with prototype conditions. Models provide some insights into the investigated process that can be used to interpret the natural case studies.

Extent

x0: -163791.020427086000000
x1: 769993.875598177000000
y0: 2069148.003367730000000
y1: 2406423.623459750000000

Spatial Reference System Identifier

EPSG:32614

Keywords

(3376, 185, 326, 41, 185, 'Los Humeros', 'los-humeros_1'), (3372, 194, 326, 41, 194, 'TMVB', 'tmvb'), (3374, 199, 326, 41, 199, 'Acoculco', 'acoculco_1'), (3377, 255, 326, 41, 255, 'caldera collapse', 'caldera-collapse'), (3370, 256, 326, 41, 256, 'analogue model', 'analogue-model'), (3371, 257, 326, 41, 257, 'rift propagation', 'rift-propagation'), (3375, 258, 326, 41, 258, 'inherited fabric', 'inherited-fabric'), (3373, 259, 326, 41, 259, 'caldera resurgence', 'caldera-resurgence')

Category

Geology

Regions

Mexico

Resource Metadata

Analogue models