Are You suprised ?

Detached construction is a SD in which one of the secondary parts of a sentence by some specific consideration of the writer is placed so that it seems formally independent of the word it logically refers to. They seem to dangle in the sentence as isolated parts.

Detached parts assume a greater degree of significance and are given prominence by intonation. The most common cases of detached constructions are those in which an attribute or an adverbial modifier is placed not with its immediate referent, but in some other position.

E.g. Sir Pitt came in first, very much flushed, and rather unsteady in his gait. (Thackeray)

The essential quality of detached constructions lies in the fact that the isolated parts represent a kind of independent whole thrust into the sentence or placed in a position which will make the phrase seem independent. But this phrase cannot become a primary member of the sentence.

A variant of detached construction is parenthesis - a qualifying, explanatory or appositive word, phrase, clause, sentence, etc. which interrupts a syntactic construction without otherwise affecting it

E.g. June stood in front, fending off this idle curiosity - a little bit of a thing, as somebody said, ‘all hair and spirit’. (Galsworthy)