Introduction. The Medusae Fossae Formation (MFF) is an enigmatic formation located between 130°-230°E and 12°S-12°N, in the southern parts of the Elysium and Amazonis quadrangles and the northern parts of the Aeolis and Memnonia quadrangles. It covers an area of approximately 2.1 x 10 km and has an estimated volume of 1.4 x 10 km [1]. The formation is composed of highly eroded, finegrained, fri...

In the aeolian-dominated conditions of modern Mars, wind-driven sediment deposition and erosion produce a wide range enigmatic landforms on planet's surface. this work, we explore widespread occurrence paleodunes surface Mars. These fossilized bedforms preserve morphologies consistent with transverse dunes, implying an approximately unimodal ancient transport azimuth abundant supply. have previ...

Yardangs are streamlined ridges that form in arid environments on Earth and Mars through wind-driven abrasion of consolidated substrates. Currently, there is limited consensus the mechanisms initiate establish patterns yardangs landscape. In this work, we examine spatial organization Campo de Piedra Pómez ignimbrite deposit north-western Argentina identify evidence antecedent controls yardang f...

abstract this paper presents a robust approach using artificial neural networks in the form of a self organizing map (som) as a semi-automatic method for analysis and identification of morphometric features in two completely different environments, the man and biosphere reserve “eastern carpathians” (central europe) in a complex mountainous humid area and yardangs in lut desert, iran, a hyper a...

[1] The geologic origin of the Medusae Fossae Formation (MFF) has remained a mystery despite three decades of research. To better constrain its formation, an in-depth analysis of observations made in the literature was combined with a new survey of over 700 Mars Orbiter Camera narrow-angle images of the MFF to identify morphologic characteristics and material properties that define this formati...

[1] The nature and origin of the Medusae Fossae Formation (MFF) on Mars has been debated since the return of the first Viking images. The MFF’s young age, distinctive surface texture, and lack of obvious source have prompted multiple hypotheses for its origin. This study uses data from the Mars Global Surveyor (MGS) mission to examine the MFF at all available scales. We discuss and quantify obs...

introduction morphological segmentation of land surface is commonly used for land surface allocation in management and environmental sciences. the first step in assigning a piece of land to a specific application is to divide it into homogeneous morphological segments. traditional field-based geomorphological mapping can be time consuming, costly, and challenging when large areas, particularly ...

The morphological characteristics of yardangs are the direct evidence that reveals wind and fluvial erosion for lacustrine sediments in arid areas. These features can be critical indicators reconstructing local directions environment conditions. Thus, fast accurate extraction is key to studying their regional distribution evolution process. However, existing automated methods characterize limit...

Although microplastics (MPs) are ubiquitous environmental contaminants, little is known about their occurrence and behavior in the terrestrial setting. In this study, MPs have been isolated from soils collected various geomorphological features (yardangs, sand dunes, moving sands, seasonal lakes) of Kavir Lut Deserts on Iranian plateau. The number identified 300 g samples ranged zero (not detec...

HiRISE images of the lower member of the Medusae Fossae Formation (MFF) were used to identify characteristics of two specific landforms that are well expressed in this particular geologic unit; yardangs and sinuous ridges. Yardangs are wind-eroded ridges that are usually confined to arid environments where the bedrock materials can be easily eroded by windblown sand. Yardangs are common in the ...