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手做葉脈化石紀念物(STEP BY STEP DIY示範教學)

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Uploaded by on Nov 15, 2009

大樹《自然野趣DIY》作者黃一峰示範。
製作葉脈化石所需要的工具跟採集動物腳印的材料幾乎完全雷同,包括齒科用的超硬石膏(或一般石膏,乾燥時間較長) 、攪拌棒一隻、切一半的寶特瓶一個(調製石膏用) ,唯一不同的是必須帶一個塑膠袋。 當你在野外找到一片讓你心儀的葉子之後,將塑膠袋舖在任何一個平面上當做隔離(這樣無論是高級的桌面或野外的泥地上,都能讓你的葉脈化石背面平整光滑) ,將適量的石膏加水攪拌至如奶昔般的濃稠狀之後,倒至塑膠袋上,讓它自然流下呈現圓弧狀,等待幾分鐘,觀察石膏表面水分慢慢乾燥之際,放上葉子,無論葉子的形態如何,葉緣­有無波浪起伏,都將它慢慢壓下與石膏結合,待貼平之後,靜置五到八分鐘(實際乾燥情況仍需視現場判斷),待石膏即將完全乾燥之際從葉柄處慢慢向上拉起葉子,葉脈化石便大功­告成。

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