Compaction of basin sediments: Modeling based on time-temperature history
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Porosity decrease of sandstones, carbonates, and shales during burial is modeled here in terms of time-temperature exposure rather than in terms of depth. Loss of porosity (ϕ) in the subsurface is represented by a power function, ϕ = A(M)B, where A and B are constants and M is a measure of integrated time-temperature history. Regression lines of carbonate and sandstone porosity upon Lopatin's time-temperature index of thermal maturity (TTI) generally fall within a rather narrow envelope whose axis is approximated by ϕ = 30(TTI)−0.33. This equation is useful for regional modeling of carbonate and sandstone compaction. Dependence of porosity upon integrated time-temperature history implies that basin sediments are not in equilibrium but compact through geologic time. Calculations show that subsidence resulting from the loss of porosity with increasing time-temperature exposure (as opposed to deeper burial) can produce a second-stage, passively formed basin containing many hundreds of meters of sediments.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Compaction of basin sediments: Modeling based on time-temperature history |
| Series title | Journal of Geophysical Research Solid Earth |
| DOI | 10.1029/JB094iB06p07379 |
| Volume | 94 |
| Issue | B6 |
| Year Published | 1989 |
| Language | English |
| Publisher | American Geophysical Union |
| Description | 8 p. |
| First page | 7379 |
| Last page | 7386 |
| Google Analytic Metrics | Metrics page |