The phrase "a shallow active" is not correct and does not convey a clear meaning in written English.
It may be intended to describe something that is both superficial and dynamic, but without additional context, its usage is unclear.
Example: "The analysis provided was a shallow active, lacking depth and thoroughness."
Alternatives: "a superficial action" or "a cursory engagement".
The results show that the thawing of a shallow active soil layer induced a rapid increase in soil moisture, triggering the dramatic change in main energy partitioning from sensible heat flux (H) to latent heat flux (LE) in both AM and BL sites.
At the eastern flank of the uplifted area, we found a sharp discontinuity in the uplift rate from the ALOS/PALSAR interferometry, and a sharp discontinuity in the amount of uplift in response to the 2016 Meinong earthquake (M6.4) from ALOS-2/PALSAR2 interferometry, which implies the existence of a shallow active fault.
Soils with a thick (insulating) organic surface layer have a shallow active layer.
High-resolution structures of human VHR, VHZ, Vaccinia virus VH1, and many other VH1-like phosphatases have revealed a shallow active site pocket (∼6 Å in depth).
During runoff events, when the water table rises above the soil surface, water that would naturally move as low velocity sheet flow through dense vegetation and tussocks now potentially forms rills and gullies over denuded, low resistance soils with greater energy to cause thermal and mechanical erosion of permafrost soils, particularly in areas with a shallow active layer.
If this interpretation is correct, then an aseismic décollement may exist on the top of a stalled slab that links these shallow active strands of the SAFS kinematically with its unknown SAFS deeper structure.
The aseismic uplift before the Meinong earthquake would be mainly due to the mud diapirs at the depth, which is perturbed by the aseismic movement of the shallow active fault.
Class III chitinases, e.g. the plant chitinase hevamine, have a shallow and open active site architecture indicative for endochitinases (Terwisscha van Scheltinga et al. 1996).
The crystal structure shows that the single-stranded substrate tracks along a shallow groove at the active site, and this groove does not provide any base-specifying contacts; consequently, the apparent sequence preference for A/U is most likely due to preference for single stranded conformation [10] (Fig. 3C).
Throughout the Arctic, excluding a few maritime areas, the winter cold is so intense that the ground remains permanently frozen except for a shallow upper zone, called the active layer, which thaws during the brief summer.
A small amount of hydrocarbons vertically migrated along active faults into a shallow formation during charging.
