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101.
The Arman’ flora belongs to the formation of the same name in the Arman’ River basin and Nel’khandzha-Khasyn interfluve. It includes about 80 fossil plant species. The similarity of this flora to the reliably dated fossil floras of northwestern Kamchatka and the Pekul’nei Range dates it to being Turonian and Coniacian in age, which is corroborated by isotopic (U-Pb and 40Ar/39Ar) dating of the plant-bearing layers. The CLAMP method is used to estimate quantitative climatic variables, according to which the Arman’ flora existed in a temperate humid climate with warm summers and mild winters. This climate is especially similar to the conditions reconstructed from fossil plants of the Turonian Penzhina flora and the Coniacian Kaivayam and Tylpegyrgynai floras of Northeast Asia. 相似文献
102.
Hyun Jung Cho Igor Ogashawara Deepak Mishra Joseph White Andrew Kamerosky Lori Morris 《地理信息系统科学与遥感》2014,51(2):120-138
Differentiation between benthic habitats, particularly seagrass and macroalgae, using satellite data is complicated because of water column effects plus the presence of chlorophyll-a in both seagrass and algae that result in similar spectral patterns. Hyperspectral imager for the coastal ocean data over the Indian River Lagoon, Florida, USA, was used to develop two benthic classification models, SlopeRED and SlopeNIR. Their performance was compared with iterative self-organizing data analysis technique and spectral angle mapping classification methods. The slope models provided greater overall accuracies (63–64%) and were able to distinguish between seagrass and macroalgae substrates more accurately compared to the results obtained using the other classifications methods. 相似文献