6/14/2023 0 Comments JmicrovisionMost of the large Morozovella species such as Morozovella aequa, Morozovella formosa-gracilis, Morozovella velascoensis and Morozovella pasionensis, together with Acarinina nitida show intermediate dissolution resistance, whereas the small muricate Igorina species, the cancellate Subbotina velascoensis and the thin-walled Morozovella acuta and Morozovella occlusa are the most vulnerable species. At species level, the thick-walled Acarinina soldadoensis, Acarinina subsphaerica and the large Morozovella subbotinae are the most resistant species. ![]() We found that the large muricate Acarinina and Morozovella are most resistant, followed by the cancellate Subbotina and the small muricate Igorina, confirming results of previous work. Shell parameters such as wall thickness, porosity and pore size were determined through Scanning Electron Microscopy (SEM) and image analysis (JMicroVision). Two independent experiments were carried out, one focusing on gradual qualitative deterioration of taxa by dissolution and the other documenting the weight loss of taxa. The purposes of this study are: 1) assessing the effects of differential dissolution on upper Paleocene–lower Eocene planktic foraminiferal assemblages, at species level and within different biozones, to quantify dissolution susceptibility of genera and species 2) investigating the differences in shell characteristics 3) revealing the relationship between shell parameters and dissolution robustness of taxa, and 4) identifying the key shell parameter(s) influencing the dissolution susceptibility of foraminiferal taxa. We investigated shell characteristics and differential dissolution susceptibility of planktic foraminiferal species derived from upper Paleocene and lower Eocene deep-sea sequences, Ocean Drilling Program (ODP) Site 865 (Allison Guyot) and Sites 1209B, 1210B and 1212A (Shatsky Rise) in the North Pacific Ocean. VLIZ : Open Repository 279805 ĭissolution susceptibility planktic foraminifera North Pacific Ocean Drilling Program Paleocene–Eocene paleoceanography paleoclimatology taphonomy Elsevier: Amsterdam New York Oxford Tokyo. It contains tools to quantify either manually or automatically.Features:Read images in TIFF, BMP, FlashPiX, GIF, JPEG, PNG, and PNM formats Efficient visualization system Quantify components: objects or background Object analysis (size, shape, orientation, texture …) Object classification Image processing (binary and morphology operations, filtering, segmentation…) Image rectification (geometric corrections by control points) Digital point counting Tools for data collection in one or two dimensions Image annotation and description card Profile (variation of granulometry, density, objects or background) Save all measures, data, calibration and preferences in a single project fileWhat’s New in version 1.2.In: Marine Micropaleontology. The program contains most of the common image processing operations, has a and intuitive user interface, an efficient visualization system and innovative features. ![]() ![]() JMicroVision is an image analysis toolbox for measuring and quantifying components of high-definition images.
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