tilloid

tilloid

[′ti‚lȯid]
(geology)
A nonglacial till-like deposit.
(petrology)
A rock of uncertain origin which resembles tillite.
References in periodicals archive ?
The northernmost stream valleys, of high gradient above, show ancient, wide fans of transported materials of slope transition colluvium or tilloid materials and in-channel upland alluvium as they grade out near the River valley.
The work of Crowell (1957), Dott (1961) and Winterer (1963) led to the introduction of purely descriptive terms for poorly sorted and laminated facies that avoided any preconceived notion of a glacial origin (e.g., diamict, mixtite, symmictite, tilloid, rhythmite; see Schermerhorn, 1966).