The phrase "a chain of causation" is correct and usable in written English.
It can be used to describe a sequence of events or actions that lead to a particular outcome or effect.
Example: "The investigation revealed a chain of causation that linked the defendant's actions to the resulting harm."
Alternatives: "a series of causes" or "a causal chain".
But many reject a chain of causation.
"It's a chain of causation, with alcohol and stress playing major roles.
Past the Woolworth Building, City Hall Park, Trinity Church: "We're very near Ground Zero, Khaled" — very near, in a chain of causation, the source of his nightmare.
We wanted a chain of causation that would answer all those questions and more a working model of the employee-customer-profit chain that would help us run the company.
See also id., at 259 ("[T]he need to prove a chain of causation from animus to injury, with details specific to retaliatory-prosecution cases,... provides the strongest justification for the no-probable-cause requirement". (emphasis added)).
which somehow came to light through a chain of causation that began with a violation of the Fourth or Fifth Amendments". New York v. Harris, 495 U.S. 14, 17, 110 S.Ct.
"The intervening act is a criminal act would break any chain of causation".
Clause (B) is to allow for events connected by a chain of indirect causation.
He is a man caught in a rusty chain of causation, and his scruples gives him no escape.
In "War and Peace," Tolstoy writes that, while an armchair general may imagine himself "analyzing some campaign on a map" and then issuing orders, a real general never finds himself at "the beginning of some event"; instead, he is perpetually situated in the middle of a series of events, each a link in an endless chain of causation.
Instead he will try to pinpoint a clear chain of causation that leads someone to lose a sense of identity and then become fully radicalised.
