The part of a sentence 'which then resulted' is correct and usable in written English.
You could use this phrase to describe a consequence of a certain action, for example: "In response, he took an aggressive stance, which then resulted in a physical altercation."
That led to an argument between the people in the truck and the police, which then resulted in dozens of local residents protesting at the police station.
Initial reports of high bacterial and chemical pollutants in the water reportedly necessitated higher levels of chlorination, which then resulted in Flint violating the federal Safe Drinking Water Act during three tests in 2014.
Bulk heterojunction could be realized by blending the p- and n-type materials which then resulted to the interpenetrating structure.
In December 2014, congestion at the Port of Los Angeles caused ships to be rerouted to the Port of Oakland, which then resulted in unexpected congestion in the San Francisco Bay that eventually impacted the entire West Coast.
For the lightly exfoliated specimen, the UIT changed the crack nucleating mechanism from intergranular cracking in exfoliation to fretting in the grips, which then resulted in a much longer fatigue life.
Specifically, she explained how the 6 was substituted for 4 + 2, yielding 22 × (4 + 2), which then resulted in the sum of two products, 22 × 4 and 22 × 2, yielding 88 + 44.
The frontrunner makes an outlandish statement, typically offending the very demographics with whom Republicans have struggled, which then results in a media frenzy that leaves little oxygen for any candidate not named Trump.
Mass-migration attempts are met with sealed borders in the developed world, which then results in the deaths of thousands of anonymous indigents journeying to promised lands only to be swallowed up by the Mediterranean or charred in the Arizona desert.
By comparison, the forms of fable and parable are relatively stable yet even they may play down the moral idea or the mysterious element and emphasize instead the narrative interest, which then results in an elaboration of the form.
Also, anyone is allowed to invite people to an event, which then results in an email notification.
The reaction between the methanol and ambient oxgyen triggers a chemical reaction, which then results in the production of electricity.
