The study of the sedimentological and mineralogical characteristics of the coastal sediments in the Loutraki gulf, included analyses of a large number of samples, that is granulometry, thin section study and x-ray examination. From these data the granulometry paramètres were assessed such as mean grain size, standard deviation σ, skewness SK, and kurtosis KG of the sediments. The study of the sedimentological parameters based on the mean grain size the offshoreline is covered by coarse grain sand, whereas the tidal zone indicates a high energy environment. The longshoredrift is from Ν to S. Most of the sand is loosely graded in the nearschore area, medium graded in the foreshore area and well graded in the backshore area. Their constant declination indicates a trend for a better gradation of sediments southwards. The latter combined with the mean grain size indicate a reduction of kinetic energy from Ν to S. In addition, the beachrocks, were studied together with their, elevation and their mineral composition .

Morphology of Tinos Island is controlled mainly by lithology and tectonics. A significant factor is also the climate; the very high humidity and the strong winds of NNE directions. These special climate characteristics cause intense chemical alteration and cellular weathering at schists and granodiorites. The relief is fairly mountainous. Mt. Tsiknias in the south is the highest mountain (725m). In the central part of the island there are Mesovouni (647m) and Prasa (614m). The slopes of the valley-sides vary a lot depending mainly on the original dip. The relief is smooth while slopes of 15-45% comprise 73% of the island. Three morphological units with different relief type can be distinguished, that results from lithological differences and the type of erosion. The first unit covers the larger part of the island and consists of mica-schists with marble intercalation. The second unit is observed at the mountains Tsiknias, Vouno and Marias. It consists of green schist, clorittalkschists. It is characterized generally of smooth relief with acute notched peaks and Tafoni. The third unit comprises the area of the plutonic rocks. It is characterized by dispersed rounded bulks of granite and spheroidal weathering. Petrologie examination showed biotitic-monzogranit in the area Steni-Volax and biotitic-granodiorit in Livada. In the spherical bulks of Livada Tafoni are created. The spheroidal weathering is owed to chemical processes. The weathered mantle was identified sericitization. The island is crossed by a watershed, which is parallel to the long axis of the island trending NW-SE, and separates the island in two asymmetric parts. The watershed is coincided to the axis of the folds. Pianation surfaces are observed at 100m, 200m, 300- 350m, 410-430m and at 600m. The topographic slopes along the coasts of Tinos present a wide range of values. The slopes of the coasts of the 500m cross-sectional coastal zone, are higher of those of the 1000m one. Clear relation between the slopes of these zones and the corresponding lithologie formations is not observed. It is believed that the main factors which controls the slope morphology of the coastal zone is the tectonic and the weathering.

The Malakasiotiko stream is one of the tributaries of Pinios River in Western Thessaly. The drainage basin of Malakasiotiko stream is located in the northwestern part of the mountainous zone of Trikala Prefecture. In this paper, the drainage network of Malakasiotiko stream has been analyzed. Additionally, the relationship among the tectonism, the growth directions of the watershed lines, and the drainage network. The quantitative analysis of the drainage network has resulted that the geological and tectonic structure of the area affected, and potentially has been affecting its development. The morphotectonic analysis has shown that the watershed lines of the drainage basin and the streams of 1st to 4th order are influenced by alpine structure, whereas the 5th, 6th and the 7th order streams are influenced by neotectonic activity.

The morphology of the coasts of the island of Lesvos is controlled mainly by the erosivity of the volcanic rocks that form >51.2% of the coasts of the island. Thus, the NE, Ν, W and the biggest part of the S coasts consist exclusively of volcanic rocks, with the E coast and the remaining part of the S coast to be formed by metamorphic rocks i.e. schists, phyllites and matbles, being the 31.7% of the coast. Neogene and alluvial formations occupy the coast of the Geras and Kalloni Gulfs and secondarily some other bays representing an area of 15.7%, with the remaining 1.4% of the coast to be consisted of peridotites and serpentinites. The coasts formed by Neogene and Quaternary deposits are rather gentle incorporating small bays where beaches have been formed. Furthermore, in the case of Geras and Kalloni Gulfs lagoons and swamps (permanent and/or seasonal) have been formed due to the low gradients of the coastal zone, the increased sediment fluxes from torrents and the low-energy wave and current regime; these wetlands are of great ecological importance. Beach zone consists of sand and pebbles of varying size, whilst the backshore zone is covered by grass and is traversed by scattered creeps. Beach rocks have been identified below or under the sea level, which are present in coasts of carbonate rocks but they are absent from those of volcanic rocks. The study of beach rocks showed a discontinuous uplifting of the sea level which reaches up to 3m during the last 4000-4500 years. Sloping coasts of various angles (from a few degrees up to 40-60 degrees) with a rather smooth relief deep into the sea; their slope remains the same above and under the sea level. Lithologically, these coasts consist mainly of volcanic rocks. This type of coast does not belong to the category of actively retreating coasts. Cliffs constitute another category of coasts. They vary from cliffs of few meters height (2 - 3 m) to cliffs of bigger size (falaise), being the product of marine erosion. These coasts belong to the category of actively retreating coasts. Along their coastline intensive erosion is observed; whilst in some places blocks of the retreating rocky coast remain offshore. In other places narrow shores, consisting of sand and pebbles, are formed on the foot of the cliff. The most steep coasts are formed primarily in acid volcanic rocks (pyroclastic, ryolitic) and secondarily in other type of volcanic rocks. In the case of intensively broken cracked loose rocky formations, rockfalls are also occurred frequently. In the case of formations that undergone intensive tectonic activity, weathering and eronional processes are amplified resulting to the formation of a thick weathered horizon, which with the underlain broken rock-strata often comes into a fragile equilibrium that results to rockfalls. Finally, along both the gently sloping coasts and the cliffed coasts are formed pocket beaches. The coasts of Lesvos are characterized genetically according to the classification system of Shepard (1963), in primary and secondary coasts. I) Primary coasts. 1) Alluvial plain coasts 2) Wind deposition coasts. 3) a) Dunes. Sand flats form in front of dunes. 4) Landslides coasts. 5) Volcanic coasts. 6) Fault coasts. II) Secondary coasts shaped mainly by marine agencies of erosion or deposition. 1 ) Coasts that were created by the erosion of waves. We distinguish: a) Wave straitened cliffs. They are distinguished from the fault coasts because they bordered by gently inclined sea floor. 2) Made irregular by wave erosion. 3 Beaches. Enough widespread type of coasts covered by sand, gravel etc. 4 Salt Marshes and marsh grass coasts. 5 Swamps and Lagoons.