"constituted mostly of" is correct and usable in written English.
You can use it when you want to communicate that something is composed of something else. For example, "This soup is constituted mostly of vegetables."
The third layer is constituted mostly of calcite, directly crystallized on the host rock.
Patriarchal forces extensively affect the nursing workforce, which is constituted mostly of women [ 34].
As in each GWAS multiple markers are associated with a single disease, one would expect hubs to be constituted mostly of disease nodes.
These values compare rather well with those published in the only previous study in which researchers looked at the aesthetic impact of HOA in a population that, as ours, was constituted mostly of women [ 10] also recruited in a tertiary specialized HOA clinic.
The cells sorted as double-positive show a profile very similar to the CD34+/EpCAM− cells; however, the poorly defined position of these cells in the sorting dot-plot (figure 4B) and the extremely small size of the cell fraction itself suggest that this group of cells could be an artefact constituted mostly of doublet cells with high CD34 levels and medium/low EpCAM levels.
The reservoirs span through shallow inner neritic to middle neritic and constitute mostly of shelf deposits.
The financial system in Cameroon which is still in its infancy operates with very limited amount of financial instruments and constitutes mostly of banks as the main arm, with an underdeveloped financial market.
Clinopyroxene nucleates from the starting material and constitutes mostly a matrix of small euhedral crystals.
This level of correlation occurs because the vast majority of the points in the regression constitute mostly noise, and only 87 constitute genuine signal.
Moreover, phase analysis map obtained from EBSD system showed that the microstructure of starting material is mostly constituted of martensite phase (more than 70%) and transforms to retained austenite by 6 cycles of ARB process.
But within normal science, scientists do not seek "major substantive novelties"; [ 19] rather, "Mopping-up operations are what engage most scientists throughout their careers".[ 19] Kuhn suggests that the history of science is mostly constituted by periods of normal science.
