Modern analog and dimensional data overview
Why use modern (Holocene) datasets
Modern systems are the most useful source of information for understanding the lateral variability of depositional environments within systems.
Use the modern datasets as analogs in order to refine the conceptual models for your subsurface interval.
Use the channel belt, channel and mouth bar datasets as analogues and as a direct source of dimensional data for object modeling
Modern mapping in essence focuses on plan view architecture. The data is derived from geomorphological interpretation of maps, which are based on aerial imagery. These maps allow us map the shapes of depositional features, resolve depositional hierarchies between different levels of architectural units, and discern the depositional history of each interval.
Modern datasets allow us to understand the link between deposition on an entire system scale, regional depositional environment scale and a local depositional environment scale.
To effectively resolve architectural units at different hierarchy levels, we need to determine how far a system prograded in the Holocene and understand its history of major distributary channel avulsions and delta lobe formation.
With Sedbase you can access several extensive modern datasets
- A global deltaic coastline systems dataset with metadata comprising of over 300 system level analogs
- A channel dimensional dataset that includes a compilation of channel width and shape measurements from over 90,000 channel inflection points. The data coverage includes most of the world's main delta plains, in addition to coverage of many alluvial plains.
- A channel belt dataset, containing over 2600 mapped and measured polygons that covers many of the same systems for which channel shapes and dimensions have been described.
- A modern mouth bar dimensional dataset containing over 600 units that describe the shallow portions of mouth bar deposits which have be mapped by using careful examination of historical satellite imagery.