Feb 22 (Reuters) - Doray Minerals Ltd DRM.AX :
* Asx alert-non-cash asset impairment-drm.ax
* Total impairment in carrying value of assets of company in range of $40 million to $45 million
* Total impairment charge is a non-cash item
* "Estimated impairment at deflector is expected to be in range of $20 million to $22.5 million"
* Expects to report increased unit costs at andy well for march quarter and an operating loss at that operation for full year ending 30 June 2017
* Impairment in carrying value of assets of likely to be recognised in consolidated interim financial report for period ended 31 December 2016 Source text for Eikon: Further company coverage: DRM.AX