Large (~600km) impact craters in South America?

According to this paper there have been 3 or 4 very large putative impact craters identified in South America (see abstract below).

Is anyone aware (/u/Hill ?) of the locations or perhaps previously posted KML/KMZs? Interested for my Consolidated Earth Impact Database

Abstract:

Novel analysis of high resolution InSAR-based digital elevation data from the year 2001 Shuttle Radar Topography Mission combined with a recently produced dataset of pan-tropical vegetation height from ALOS-1 SAR and IceSAT/GLAS Lidar estimates led to the quasi-bald-Earth discovery of four sizable near-perfect circle arcs in South America under dense tropical forests ranging in length from 216 km to 441 km. Terrain elevation profiles of cross-sections across the arcs show a distinct vertical rising and falling in elevations of hundreds of meters over a horizontal distance of tens of kilometers. It is hypothesized that these sizable arcs and associated rim-like topographic terrain features are remnants of huge meteorite impact craters with diameters ranging from 770 km to 1,310 km, thus forming potentially the largest known impact carter structures discovered on Earth today. The potential impact crater rim structures are located north of the eastern Amazon River, in the coastal region of Recife and Natal, and in the Brazilian, Bolivian and Paraguayan border region encompassing the Pantanal. Elevation profiles, hillshades and gray-shaded elevation maps were produced to support the geomorphologic analysis. It is also speculated whether in three of the four potential impact craters, central uplift domes or peaks, which are typical for complex impact crater structures can be identified. The worlds largest iron ore mining area of Carajás in Para, Brazil, falls exactly in the center of the largest hypothesized circular impact crater showing topographic elevations similar to the rim structure discovered 655 km to the north-north-west. Based on the topographic/geomorphologic driven hypothesis, geologic exploration of these topographic features is needed to test whether indeed meteorite impact craters could be verified, what the more exact ellipsoidal shapes of the potential impact craters might be, and to determine when during geologic times the impacts would have taken place. The propsoed talk based on the topographic evidence shall stimulate that discussion.

I gave it a try, but I am unable to identify the craters, and the vegetation in that area doesn't help

Same here. I guess you need an overlay of the Lidar view.

600 km is getting a bit large, its more like craton size...

The area is the edge of the divisions between the peru area  part of the continent and smaller additions around the Brazil shore.

The iron ore mine is used as evidence..

But the formation is already determined to be of igneous origin... it clearly is, they are mining along the flow... in the layer of rock.
How would a meteor flow like that ?

Going from the abstract, I have found what looks to be 2 craters:

HUGE South America Craters.kmz (2.29 KB)

See my full database also (which needs updating/sorting etc): CEID v2015.06.03.kmz (1.98 MB)

The nicest craters I have seen in South America are Araguainha, Serra de Cangalhas and Iturralde. They're no so big but you can't confuse them with anything else. Please check

www.passc.net/EarthImpactDatabase/SouthAmerica.html  for a list and location. Nobody mentions 600 km craters. Maybe there are there. But I can't be 100% sure.

The largest one "up to now" is the Araguainha crater (only 40 km across). Anyway you can propose the 600 km craters you mention as candidates for the Earth Impact Database!!

Araguainha Crater (Brazil)    Araguainha Crater.kmz (757 B)

Iturralde Crater (Bolivia)  Iturralde Crater.kmz (873 B)

Serra de Cangalha Crater (Brazil)  Serra de Cangalha Crater.kmz (766 B)

Already in Simon's huge crater list, CEID. Simon Levesque AKA Simcity AKA Ekafeman on old Google forum.

Hill, you should update the CEID thread with the latest file.

Hey Simcity,

Are you still working on your  quote: "comprehensive list of proven, suspected, and disproven impact craters for all possible impact sites"?

Jun 18, 2015 3:19:13 GMT simcity said:

Going from the abstract, I have found what looks to be 2 craters:



See my full database also (which needs updating/sorting etc):

simcity, I found this >>  List Of Impact Craters On Earth << On Wikipedia. 

Jan 19, 2016 13:51:23 GMT MoonLovesEarth said:

Hey Simcity,

Are you still working on your  quote: "comprehensive list of proven, suspected, and disproven impact craters for all possible impact sites"?

Hey there,
Yes! Just getting back into it.
I'm writing Python code to compile numerous saved structures, but am open to opinions on how to shrink down the KML file size (essentially, the problem is that each structure has a different style, whereas common styles should be shared, hence the file size being 40x< bigger than it should be)

For anyone with Python/KML knowledge...

I'm trying to shrink the database's redundant styles effectively, and have been trying to do so with Python XML plugins. Can anyone who can advise on Python and (X)KML PM me so I can update the database?

Alternatively, simcitywok (AT) outlook (DOT) com