The phrase "all of which created" is correct and usable in written English.
It can be used to refer to multiple items or factors that collectively resulted in a particular outcome or effect.
Example: "The various challenges faced during the project, all of which created significant delays, were addressed in the final report."
Alternatives: "all of which led to" or "all of which resulted in".
It has had three massive eruptions, all of which created calderas.
All of which created the feeling among some observers that this resounding series victory would be the 76ers' last.
All of which created a drum roll for Game 7, the first since 2010, when the Lakers barely held off the Celtics in Los Angeles.
But the country has also suffered terrible conflicts, poor governance and heart-wrenching poverty, all of which created and perpetuated the vulnerability which has been devastatingly exposed during the shaking.
That has meant publishing pieces by President Vladimir V. Putin of Russia; the Blackwater founder, Erik Prince; and a different take on climate change — all of which created a stir when they were published.
Genuine human airway tissue is the gold standard prior to drugs being tested clinically, but it has been extremely difficult to obtain the tissue from patients, and when it could be obtained, it rarely survived long in the lab — all of which created a major bottleneck in screening for a therapy.
The Future Cities Lab team believes that there are exciting possibilities for climate-change adaptation through a combination of architectural principles, industrial and landscape design, ecology, and robotics—all of which create these whimsical yet sensible futurist visions.
The economy pumps out goods and services, all of which create jobs and incomes.
We have texts, voicemail, email, and lots of busyness at our fingertips — all of which create the illusion of productivity.
"Our focus is on forestry, national parks, green energy development – all of which create natural climate mitigation and adaptation measures.
Corporate supply chains can be vast, multi-tiered and cut across many jurisdictions, all of which create additional legal complexities.
