The phrase "a lack of extensive" is correct and usable in written English.
It can be used when discussing insufficient quantity or quality of something, particularly in academic or formal contexts.
Example: "The study revealed a lack of extensive research on the topic, highlighting the need for further investigation."
Alternatives: "an absence of comprehensive" or "a deficiency in thorough".
NEW YORK TIMES Automatically Deleted E-Mails in the SAC Case | Bloomberg News reports: "The federal investigation of insider trading by SAC Capital Advisors LP and its founder, Steven A. Cohen, has been hampered by a lack of extensive e-mail evidence.
This limitation is the result of a lack of extensive data on the variables related to opportunity entrepreneurship.
However, there is a lack of extensive research into user interfaces for 3D applications on stereoscopic display.
In addition, there is a lack of extensive numerical experiments evaluating the effects of the relaxation of binary variables in mixed integer linear programming based unit commitment.
Although a lack of extensive agricultural production in the northern region of NL could limit the selection of bulking agents for composting, NL generally possesses extensive peat resources.
A detailed review of the literature indicates that there is a lack of extensive generic sensitivity studies for CFD simulation of natural cross-ventilation.
The adviser cited concerns about a lack of "more extensive due diligence" and said the "level of independent representation on the board is insufficient," according to Bloomberg News.
Limitations of our approach are as follows: (1) a lack of an extensive dataset for experimentation and (2) a lack of categorical information for collected data pertaining to family designations.
Yet there is a lack of relevant extensive [ 4] and effective teaching mechanisms [ 5] in the area of scientific writing.
However, due to the small sample sizes in the above reports, there is a lack of an extensive and genome-wide analysis for the diagnostic value of miRNAs in AD patients.
Despite the critical role they play in an FRP strengthening scheme, there is a general lack of extensive knowledge about the behavior of the various FRP anchorage systems.
