The magnetic anomaly map, satellite images and geological maps indicate a Ø 40 x 33 km elliptical Impact Crater and complex impact structures caused by this crater, near Port Headland ( in the Pilbara Craton / West-Australia ). This elliptical Impact Crater probably was formed by a large secondary impactor ( ejecta material ) which was ejected by another larger secondary Crater, in all probability caused by the Permian-Triassic (PT)- Impact Event 253 Ma ago, near Onslow, a town on the NW-coast. The larger secondary Crater near Onslow probably also caused the Iron-ore rich Hammersley Range in Western Australia. The Ø 40 x 33 km elliptical impact crater near Port Headland shows a distinct center-line on the magnetic anomaly map, which is a clear indication for an oblique impact. That means the impactor which formed the elliptical crater impacted in a very shallow angle of probably less than 15 degrees. Further along the trajectory of the impactor, complex impact structures were formed by the ejecta material that was ejected from the Ø 40 x 33 km elliptical Impact Crater. These impact structures are good visible on the satellite images. Near the Goldsworthy Iron-ore mine there are two areas are noticeable where ejecta material impacted on the ground and then slipped along the surface in a precise linear direction. On one of the final resting places of the ejecta material the Mount Goldsworthy Iron Ore Mine deposits were formed, which contained the world’s richest deposits of ferrous (iron)-ore. The high-grade iron-ore veins of this mine ran deep and were graded as high as 68 % ! Another interesting impact structure which was caused by impacting ejecta material, that was ejected from the elliptical crater, is a complex cascade-shaped impact structure. The magnetic anomaly map provides the best overview of this cascade-shaped impact structure, which also was caused by iron-rich ejecta material. For more information to the Permian-Triassic Impact Event 253 Ma ago, please see my other studies on www.vixra.org ( see weblinks under References on the last page ).