msss.com: Why the New Gully Deposits Are Not Dry Dust Slope Streaks

 Why the New Gully Deposits Are Not Dry Dust Slope Streaks

Typical dark slope streaks, 0.1°N, 322.0°W

https://www.msss.com/mars_images/moc/2006/12/06/gullies/not_dust/index.html

Mars Global Surveyor Mars Orbiter Camera