Death Valley's Sliding Rocks. An hypothesis about mechanism.

English version.

In Racetrack Playa (a dry lake) in Death Valley National Park in California some rocks move without the intervention of men or animals.

The rocks that make these movements can weigh as much as 300 kg (about 700lb).

The mechanism underlying these movements has not yet been well understood, although the phenomenon has been known and documented since the 1950s.
Previous theories for explaning the phenomenon involved: hurricanes, algae films and ice sheet.
The mechanism I propose is based on the following facts: 

1.  in the Racetrack Playa occasionally there are small floods, in any way there are precipitation (about 33 mm / year = 1.3 in / year);
2.  the wind is common and can reach great speeds and intensity;
3.  in the valley you can experience very high temperatures. Sometimes it is so hot that you can cook an egg simply by exposing it to the sun in a frying pan. 

The ingredients of hypothesis.

The very hot sun of the valley warms the wind and the dark surface of the rock. The surface of the rock reaches temperatures above those of the water's boiling point. There is water under the rock from previous rains or small floods.

Step 1.

The wind strikes the rock. The air temperature rises above the boiling point of the water.

Step 2.

Hot air goes under the rock. Water under the rock becomes a "cushion" of steam. This greatly reduces the coefficient of friction between soil and rock and the wind can push the rock forward.

The trail left behind the rock helps to gather rainwater under the rock to start a new movement.

References:

Messina, Paula, andPhil Stoffer. "DIFFERENTIAL GPS/GIS ANALYSIS OF THE SLIDING ROCKPHENOMENON OF RACETRACK PLAYA, DEATH VALLEY NATIONAL PARK."Proceedings of Conference on Status ofGeologic Research and Mapping, Death Valley National Park.

Jones, Ronald, andRoger LeB Hooke. "Racetrack Playa: Rocks moved by wind alone."Aeolian Research19 (2015): 1-3.