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Abundances, apparent sizes, and individual chemical compositions of chondrules, refractory inclusions, other objects and surrounding matrix have been determined for Semarkona (LL3.00) and Renazzo (CR2) using consistent methods and criteria on x-ray element intensity maps. These represent the non-carbonaceous (NC, Semarkona) and carbonaceous chondrite (CC, Renazzo) superclans of chondrite types. We compare object and matrix abundances with similar data for CM, CO, K, and CV chondrites. We assess, pixel-by-pixel, the major element abundance in each object and in the entire matrix. We determine the abundance of "metallic chondrules" in LL chondrites. Chondrules with high Mg/Si and low Fe/Si and matrix carrying opposing ratios complement each other to make whole rocks with near-solar major element ratios in Renazzo. Similar Mg/Si and Fe/Si chondrule-matrix relationships are seen in Semarkona, which is within 11% of solar Mg/Si but significantly Fe-depleted. These results provide a robust constraint in support of single-reservoir models for chondrule formation and accretion, ruling out whole classes of astrophysical models and constraining processes of chondrite component formation and accretion into chondrite parent bodies., Comment: 20 pages, 10 figures, 4 tables. Meteoritics and Planetary Sciences (20pp) (2024)

Fertilizer manufacturing is an energy-intensive process that is done in a select number of facilities across the world. We performed a literature review of methods that are being pursued in the emerging field of sustainable fertilizer manufacturing and analyzed the results of one such sustainably sourced fertilizer process. The results of our testing on a rooftop garden showed that the production of tomatoes was similar to the control and commercial fertilizer scenarios in that the total weight of tomatoes per plant was 16% higher, and the weight per tomato was 68% more than the control (tap water). We hope that this type of research will continue to be performed and expanded so that we can adopt a more sustainable method of fertilizer manufacturing in our pursuit of net positive environmental benefits.