The phrase "a significant amount of additional" is correct and usable in written English.
It can be used when discussing an increase or extra quantity of something, often in a formal or academic context.
Example: "The study revealed a significant amount of additional data that could enhance our understanding of the subject."
Alternatives: "a considerable quantity of extra" or "a substantial level of further".
Nintendo also said today that there will be "a significant amount of additional systems" shipped to stores for the 29th in addition to the pre-order stock, and that it'll be shipping additional units throughout the rest of 2017 to help address demand.
Forecasts suggest there should not be a significant amount of additional rain before Saturday afternoon.
"A lot of families would've been hurt without a significant amount of additional funding".
MUP's purely scholarly output was approximately 40% of its current output, and that a significant amount of additional scholarly material originated in the academy but was then edited for a wider readership, he said.
However, for a complex computer-aided design (CAD) model, the fabricated structures have a significant amount of additional support structures that are required in order to ensure the model can be fabricated.
It is shown that for some spectra a significant amount of additional information can be gained from long-range 13C 13C scalar couplings in 2D [13COSY] COSY NMR spectra.
In *Horiba's (2012) study, Korean-speaking learners' WAF test scores showed a very high correlation (r about.90) with a measure that assessed their vocabulary breadth, which perhaps explains why over and above breath, depth did not explain any significant amount of additional variance in reading comprehension.
These actions, and the identified specific shortcomings and required responses detailed in the individual Joint Letters, will require a very significant amount of additional work by the First Wave Filers.
If a significant amount of arsenic remained undetected, additional digestion or assay for arsenobetaine was performed.
Second, low gas prices cause additional natural gas plants to come online, offering a significant amount of grid flexibility and allowing additional renewables to integrate into the system.
Significant amount of additional advanced material and substantially more challenging projects.
