An ultrasound-enhanced elution system with Triton X-100 solution was used to remediate aging soils contaminated with super heavy oil. We used GC/MS. SEM, and X-ray diffraction (XRD) to analyze the effect of ultrasonic time (0-1800s) on the elution of super heavy oil and its three characteristic biomarkers (C26-34 17 alpha 25-norhopanes, C26-28 triaromatic steroid [TAS], and C27-29 methyl triaromatic steroid [MTAS]). The oil and biomarkers remaining in the treated soils followed similar second-order functions with increasing ultrasonication times. Biomarker elution was closely related to carbon numbers in the marker. For C26-34 17 alpha 25-norhopanes, the smaller molecules were more readily eluted during 0-360s ultrasound. This trend was reversed upon application of ultrasound during 1080-1800s. with improved elution of larger molecules and elution followed a similar second-order function. For C26-28 TAS, smaller molecules were more readily eluted but the elution of larger molecules followed a similar second-order function. For C27-29 MTAS, elution of larger molecules was close to that of C26-34 17 alpha 25-norhopanes. Results of SEM and XRD indicated that the mineral and chemical compositions of soils eluted at ultrasonication times of 1080-1800s closely resembled clean soils. (c) 2010 Elsevier B.V. All rights reserved.