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I've been honored to present on behalf of Shell at the Instituto Argentina del Petroleo y del Gas' “Ciclo de Conferencias: Exploración Offshore” webinar event on May 27th 2021. The event was attended by about 150 participants.
Added a section on my Tips and tricks *Nix on using git with the Windows subsystem for linux.
Derek Neuharth's paper on the “Formation of continental microplates through rift linkage: Numerical modelling and its application to the Flemish Cap and SaoPaulo Plateau” has just been accepted from publication in AGU's G^3. A pre-print is available on EarthArxiv
- Strike-perpendicular offset and crustal strength control the mode of rift segment linkage (microplate, oblique, or transform).
- Rotating continental microplates form at offsets of >200 km for weak and moderately strong crust.
- Modelled microplate evolution may explain the formation of the Flemish Cap, the Sao Paulo Plateau and other continental promontories.
Continental microplates are enigmatic plate boundary features, which can occur in extensional and compressional regimes. Here we focus on microplate formation and their temporal evolution in continental rift settings. To this aim, we employ the geodynamic finite element software ASPECT to conduct 3D lithospheric-scale numerical models from rift inception to continental breakup. We find that depending on the strike-perpendicular offset and crustal strength, rift segments connect or interact through one of four regimes: (1) an oblique rift, (2) a transform fault, (3) a rotating continental microplate or (4) a rift jump. We highlight that rotating microplates form at offsets >200 km in weak to moderately strong crustal setups. We describe the dynamics of microplate evolution from initial rift propagation, to segment overlap, vertical- axis rotation, and eventually continental breakup. These models may explain microplate size and kinematics of the Flemish Cap, the Sao Paulo Plateau and other continental microplates that formed during continental rifting worldwide.
Since this week, the Generic mapping tools (GMT) have an option to plot colorscale annotations at an angle. After describing my quest to produce annotated geological time scale stages GMT forum post, Paul swiftly implemented the ''-S+a'' option in ''gmt colorbar''. This greatly helps with non-numeric colorscales such as the geological time scale.
The corporate GIS vehicle is ESRI's ArcGIS Pro. When digitizing new features which are to be used in GPlates, each feature is required to have a UUID-based
FEATURE_ID in the form of
GPlates-7344d973-6ff1-47f7-93b9-bdb9cf7197ee. In ArcGIS Pro, this can be done easily using the field calculator. The following definition (based on ESRI's website) can be plonked into the Code Block part of the Field Calculator:
def ID(): import uuid return 'GPlates-' + str(uuid.uuid4())
while in the field assignment (
FEATURE_ID =) one then simply uses the above definition, assigning
FIELD_ID = ID()