The phrase "a surficial" is correct and usable in written English.
It can be used in contexts related to geology, geography, or environmental science, referring to something that is related to or occurring on the surface of the Earth.
Example: "The study focused on a surficial analysis of the soil composition in the area."
Alternatives: "a surface" or "a superficial".
Technical-grade hydroxypropyl-β-cyclodextrin was used during the CSF study, which was conducted in a hydraulically isolated cell emplaced in a surficial aquifer.
A surficial layer (Upper Layer) with relatively constant thickness (around 50 cm independent of relief position) covers Pleistocene sediments of any age.
The heterogeneity and dynamic of water flow and solute transport processes were investigated in the upper 6 m of a surficial, glacial till in southern Saskatchewan, Canada.
A field investigation of a TCE plume in a surficial sand aquifer shows that groundwater surface water interactions strongly influence apparent plume attenuation.
Now, a full-scale field implementation of the mobilization approach is planned to recover an LNAPL (Jet A fuel) from a surficial sand aquifer located in Denmark using a smaller amount of surfactant solution and fewer PVs of throughput compared with the SEAR approach.
Four maps, including three different flood hazard assessments of Ivanpah Valley, NV, were compared: (i) a regulatory map prepared by FEMA, (ii) a soil survey map prepared by NRCS, (iii) a surficial geologic map, and (iv) a flood hazard map derived from the surficial geologic map, both of which were prepared by NBMG.
One important conclusion from this experimental study was that, unfortunately, in both cases, the modified layer occupied only a thin surficial part of the processed PbSe film, and a formation of a well-defined pore network did not take place.
Observations of asteroid (101955) Bennu with NASA's OSIRIS-REx spacecraft reveal an unexpected surficial diversity that poses a challenge to the success of the sample-return mission.
We found that spherical Nano-S could effectively bind copper and form a tighter surficial structure.
A generalized model is designed that represents hydrologic conditions where gently dipping aquifer-confining unit sedimentary sequences subcrop beneath a thin surficial aquifer and are transected by gaining streams flowing parallel to dip.
At two of these sites (I1 and I5), a thick surficial clay layer was not encountered during drilling.
