نتایج جستجو برای: senonian
تعداد نتایج: 20 فیلتر نتایج به سال:
In order to decipher the paleo-depositional environments, during Late Jurassic Early Eocene syn-rift stage, at margins of Ionian basin, two different areas with exposed long sequences have been selected, Kastos Island (external margin) and Araxos peninsula (internal margin), were examined by means microfacies analysis biostratigraphy. On Island, based on lithological sedimentological features, ...
The study area belongs to the southern edge of central High Atlas. It is limited North by Sub-atlasic accident and South extension Eastern Anti Atlas formations. To determine depositional environments Senonian series, a sedimentological analysis facies was carried out based on field observations recognition sedimentary structures textures. An exoscopic quartz grains also systematic prospecting ...
Sympatric speciation has been controversial since it was first proposed as a mode of speciation. Subterranean blind mole rats (Spalacidae) are considered to speciate allopatrically or peripatrically. Here, we report a possible incipient sympatric adaptive ecological speciation in Spalax galili (2n = 52). The study microsite (0.04 km(2)) is sharply subdivided geologically, edaphically, and ecolo...
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