Indian Plate stratigraphic units: On-line open-access database (Lexicon), including options to display sediment and volcanic facies onto plate reconstructions
- 1IUGS Deep-Time Digital Earth, Paleogeography, Rajahmundry ; District: East Godavari, India (oneil.rhylet@gmail.com)
- 2ONGC, Dehradun, Rajahmundry, India
- 3ONGC, Chennai, India
- 4University of the Punjab, Lahore, Pakistan, Institute of Geology, Lahore, Pakistan
- 5International Union of Geological Sciences, Deep-time Digital Earth Research Center of Excellence (Suzhou),Suzhou, China
- 6Geologic TimeScale Foundation, West Lafayette, Indiana, USA
- 7Purdue University, Electrical and Computer Engineering, West Lafayette, USA
- 8The University of Sydney. EarthByte Group, School of Geosciences, Camperdown NSW, Australia
- 9Indian National Science Academy, Panchkula, India
- 10Panjab University, Center of Advanced Study in Geology, Chandigarh, India
Our international team has worked with regional experts to compile details on nearly every geologic formation of the Indian Plate from Proterozoic through Quaternary. This suite of nearly 1000 sedimentary and volcanic formations includes India, Pakistan, Nepal, Bhutan, Sri Lanka, Bangladesh and Myanmar, plus all offshore sedimentary basins that have been explored for hydrocarbons. The data for each formation includes its lithologic succession, fossil content, age span details, regional extent and images of stratigraphic columns/outcrops/etc. (when available). The geologic age spans (as percent-up in stages) are auto-converted to numerical ages using a look-up table (currently Geologic Time Scale 2020), and the regional extents include GeoJSON coding. APIs provide open access to this information for other applications.
The user can explore this information using a map interface, stratigraphic-column interfaces (generated with TimeScale Creator software), and a variety of search filters (including and/or logic for words within lithologic descriptions). An additional option on the displayed output is to display either a single formation GeoJSON or an age-suite of formation GeoJSONs as facies pattern-filled polygons onto a user-selected plate reconstruction model for that appropriate age via a one-click activation of pyGPlates-pyGMT graphics.
This cloud-based database and website (currently at indplex.geolex.org/index.php) will be hosted and maintained by the Geologic Society of India in coordination with colleagues in Pakistan and other nations. Our online Indian Plate database currently links to adjacent regional lexicons of China and Indochina for regional paleogeographic displays, and is intended to share age-facies location information with stratigraphic databases of Australia, MacroStrat, One-Stratigraphy, etc., within the lUGS Deep-Time Digital Earth system, to generate paleogeographic visualizations of any desired geologic age onto any plate-motion model.
How to cite: Mamallapalli, O., Datla, R. D., Addula, N. R., Siddiqui, N. K., Ogg, J., Ogg, G., Chang, S., Du, W., Mishra, S., Ault, A., Om, B. N., and Singh, B. P.: Indian Plate stratigraphic units: On-line open-access database (Lexicon), including options to display sediment and volcanic facies onto plate reconstructions, EGU General Assembly 2023, Vienna, Austria, 23–28 Apr 2023, EGU23-2171, https://doi.org/10.5194/egusphere-egu23-2171, 2023.
